SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)  $ in Thousands  | 
Sep. 30, 2022  | 
Mar. 31, 2022  | 
Aug. 31, 2012  | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
$ 703,218
 | 
 | 
$ 669,248
 | 
[1] | 
 
 | 
| Fair Value | 
 | 
737,935
 | 
 | 
714,396
 | 
[1] | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Common Stock Warrants | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[3],[4] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Fair Value | 
[2],[3],[4] | 
 
 | 
 | 
921
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
2,800
 | 
[5],[6] | 
2,800
 | 
[2],[3],[7] | 
 
 | 
| Fair Value | 
 | 
2,800
 | 
[5],[6] | 
2,800
 | 
[2],[3],[7] | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[3],[4] | 
 
 | 
 | 
4,722
 | 
 | 
 
 | 
| Fair Value | 
[2],[3],[4] | 
 
 | 
 | 
14,746
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[3],[7] | 
 
 | 
 | 
14,000
 | 
 | 
 
 | 
| Fair Value | 
[2],[3],[7] | 
 
 | 
 | 
14,000
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Common Stock Warrants | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[6],[8],[9] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[6],[8],[9] | 
58
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[6] | 
14,000
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[6] | 
14,000
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: B+T Group Acquisition, Inc.– Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[6],[9] | 
4,722
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[6],[9] | 
6,342
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[4] | 
 
 | 
 | 
4,900
 | 
 | 
 
 | 
| Fair Value | 
[2],[4] | 
 
 | 
 | 
17,150
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2] | 
 
 | 
 | 
48,000
 | 
 | 
 
 | 
| Fair Value | 
[2] | 
 
 | 
 | 
48,000
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,653
 | 
[5],[9] | 
6,653
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
27,980
 | 
[5],[9] | 
21,485
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
17,700
 | 
[5] | 
17,700
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
17,700
 | 
[5] | 
17,700
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,850
 | 
[5] | 
6,850
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
6,850
 | 
[5] | 
6,850
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Counsel Press, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,995
 | 
[5],[9] | 
6,995
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
27,246
 | 
[5],[9] | 
25,374
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
21,100
 | 
[5] | 
21,100
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
21,100
 | 
[5] | 
21,100
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,400
 | 
[5] | 
6,400
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
6,400
 | 
[5] | 
6,400
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Country Club Enterprises, LLC - Guaranty | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[10] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Fair Value | 
[10] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Country Club Enterprises, LLC – Guaranty | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[11] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[11] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Country Club Enterprises, LLC – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
1,500
 | 
[12] | 
1,500
 | 
[13] | 
 
 | 
| Fair Value | 
 | 
1,499
 | 
[12] | 
1,498
 | 
[13] | 
 
 | 
| Investment, Identifier [Axis]: Dema/Mai Holdings, Inc - Preferred Equity | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[9] | 
21,000
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[9] | 
21,000
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Line of Credit | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5] | 
800
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5] | 
800
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5] | 
38,250
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5] | 
38,250
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Diligent Delivery Systems – Common Stock Warrants | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
500
 | 
[5],[9] | 
500
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
1,827
 | 
[5],[9] | 
1,533
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Diligent Delivery Systems – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
12,996
 | 
[12] | 
12,987
 | 
[13] | 
 
 | 
| Fair Value | 
 | 
13,000
 | 
[12] | 
13,000
 | 
[13] | 
 
 | 
| Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
8,199
 | 
[5],[6],[9] | 
8,199
 | 
[2],[3],[4],[7] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[6],[9] | 
0
 | 
[2],[3],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[3],[13] | 
 
 | 
 | 
9,210
 | 
 | 
 
 | 
| Fair Value | 
[3],[13] | 
 
 | 
 | 
9,072
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.– Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[6] | 
9,210
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[6] | 
3,825
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Educators Resource, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
8,560
 | 
[5],[9] | 
8,560
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
18,937
 | 
[5],[9] | 
19,252
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Educators Resource, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
20,000
 | 
[5] | 
20,000
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
20,000
 | 
[5] | 
20,000
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC – Common Units | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
21
 | 
[6],[9],[14] | 
30
 | 
[3],[4],[15],[16] | 
 
 | 
| Fair Value | 
 | 
58
 | 
[6],[9],[14] | 
74
 | 
[3],[4],[15],[16] | 
 
 | 
| Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
11,513
 | 
[5],[9] | 
11,513
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,500
 | 
[5] | 
6,500
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
6,102
 | 
[5] | 
6,500
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
18,796
 | 
[5] | 
18,796
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
17,644
 | 
[5] | 
18,796
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
 
 | 
 | 
 
 | 
 | 
$ 5,000
 | 
| Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
8
 | 
[5],[9] | 
8
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
9,583
 | 
[5],[9] | 
9,583
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
3,263
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5] | 
12,200
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
 | 
12,200
 | 
[5] | 
13,300
 | 
[3],[17] | 
 
 | 
| Investment, Identifier [Axis]: Gladstone SOG Investments, Inc. - Common Stock( | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[9] | 
620
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[9] | 
713
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
0
 | 
[5],[9] | 
10,080
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
21,454
 | 
[5],[9] | 
17,807
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
57,700
 | 
[5] | 
27,700
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
57,700
 | 
[5] | 
27,700
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,749
 | 
[5],[9] | 
6,749
 | 
[2],[4],[7] | 
 
 | 
| Fair Value | 
 | 
14,051
 | 
[5],[9] | 
16,405
 | 
[2],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
22,000
 | 
[5] | 
22,000
 | 
[2],[7] | 
 
 | 
| Fair Value | 
 | 
22,000
 | 
[5] | 
22,000
 | 
[2],[7] | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Guaranty | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[7],[10] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Fair Value | 
[7],[10] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
16,500
 | 
[5],[18] | 
16,500
 | 
[2],[7],[19] | 
 
 | 
| Fair Value | 
 | 
10,900
 | 
[5],[18] | 
15,023
 | 
[2],[7],[19] | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7],[19] | 
 
 | 
 | 
26,000
 | 
 | 
 
 | 
| Fair Value | 
[2],[7],[19] | 
 
 | 
 | 
23,672
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 3 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7],[19] | 
 
 | 
 | 
2,438
 | 
 | 
 
 | 
| Fair Value | 
[2],[7],[19] | 
 
 | 
 | 
2,219
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Line of Credit | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
1,000
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
660
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
26,000
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
17,176
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 3 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
2,438
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
1,610
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: J.R. Hobbs Co. – Atlanta, LLC – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
10,920
 | 
[5],[9] | 
10,920
 | 
[2],[4],[7] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: Mason West, LLC – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
11,206
 | 
[5],[9] | 
11,206
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
5,615
 | 
[5],[9] | 
7,553
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Mason West, LLC – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
25,250
 | 
[5] | 
25,250
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
25,250
 | 
[5] | 
25,250
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Line of Credit | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
0
 | 
[5] | 
0
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5] | 
0
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,600
 | 
[5],[9] | 
6,600
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
19,040
 | 
[5],[9] | 
10,223
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
34,050
 | 
[5] | 
27,700
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
34,050
 | 
[5] | 
27,700
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Nth Degree Investment Group, LLC – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
1,219
 | 
[5],[9] | 
1,219
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
8,191
 | 
[5],[9] | 
511
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Old World Christmas, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4],[7] | 
 
 | 
| Fair Value | 
 | 
43,629
 | 
[5],[9] | 
37,842
 | 
[2],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: Old World Christmas, Inc. – Secured First Lien Term Loan | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
25,000
 | 
[5] | 
25,000
 | 
[2],[7] | 
 
 | 
| Fair Value | 
 | 
25,000
 | 
[5] | 
25,000
 | 
[2],[7] | 
 
 | 
| Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[4],[7] | 
 
 | 
 | 
19,730
 | 
 | 
 
 | 
| Fair Value | 
[2],[4],[7] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock( | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[9] | 
19,730
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[9] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
26,618
 | 
[5] | 
26,618
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
23,642
 | 
[5] | 
26,618
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[12] | 
2,550
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[12] | 
2,410
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit, | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[13] | 
 
 | 
 | 
2,000
 | 
 | 
 
 | 
| Fair Value | 
[13] | 
 
 | 
 | 
1,920
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
1,452
 | 
[5],[9] | 
1,452
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
3,200
 | 
[12] | 
3,200
 | 
[13] | 
 
 | 
| Fair Value | 
 | 
3,024
 | 
[12] | 
3,072
 | 
[13] | 
 
 | 
| Investment, Identifier [Axis]: SFEG Holdings, Inc. – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
222
 | 
[5],[9] | 
222
 | 
[2],[4],[16] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4],[16] | 
 
 | 
| Investment, Identifier [Axis]: SFEG Holdings, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
4,643
 | 
[5],[9] | 
4,643
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
2,543
 | 
[5],[9] | 
0
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
3,128
 | 
[5] | 
3,128
 | 
[13],[19] | 
 
 | 
| Fair Value | 
 | 
3,128
 | 
[5] | 
2,909
 | 
[13],[19] | 
 
 | 
| Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
11,736
 | 
[5] | 
11,736
 | 
[13],[19] | 
 
 | 
| Fair Value | 
 | 
11,736
 | 
[5] | 
10,914
 | 
[13],[19] | 
 
 | 
| Investment, Identifier [Axis]: Schylling, Inc. – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
4,000
 | 
[5],[9] | 
4,000
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
16,475
 | 
[5],[9] | 
17,820
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: Schylling, Inc. – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
27,981
 | 
[5] | 
27,981
 | 
[2] | 
 
 | 
| Fair Value | 
 | 
27,981
 | 
[5] | 
27,981
 | 
[2] | 
 
 | 
| Investment, Identifier [Axis]: The Maids International, LLC – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,640
 | 
[5],[9] | 
6,640
 | 
[2],[4],[7] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
2,679
 | 
[2],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: The Maids International, LLC – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7] | 
 
 | 
 | 
28,560
 | 
 | 
 
 | 
| Fair Value | 
[2],[7] | 
 
 | 
 | 
28,560
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Maids International, LLC – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5] | 
28,560
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5] | 
28,560
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7],[19] | 
 
 | 
 | 
3,400
 | 
 | 
 
 | 
| Fair Value | 
[2],[7],[19] | 
 
 | 
 | 
3,400
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7],[19] | 
 
 | 
 | 
800
 | 
 | 
 
 | 
| Fair Value | 
[2],[7],[19] | 
 
 | 
 | 
800
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Common Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
1
 | 
[5],[9] | 
1
 | 
[2],[4] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[9] | 
0
 | 
[2],[4] | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Delayed Draw Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
1,500
 | 
[5],[18] | 
1,500
 | 
[2],[7],[19] | 
 
 | 
| Fair Value | 
 | 
0
 | 
[5],[18] | 
118
 | 
[2],[7],[19] | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
3,400
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
2,411
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
900
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[4] | 
 
 | 
 | 
6,899
 | 
 | 
 
 | 
| Fair Value | 
[2],[4] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock( | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[9] | 
6,899
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[9] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7],[19] | 
 
 | 
 | 
11,700
 | 
 | 
 
 | 
| Fair Value | 
[2],[7],[19] | 
 
 | 
 | 
923
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: The Mountain Corporation – Term Debt | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5],[18] | 
11,700
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5],[18] | 
0
 | 
 | 
 
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd. - Preferred Stock | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
6,000
 | 
[5],[9] | 
6,000
 | 
[2],[4],[7] | 
 
 | 
| Fair Value | 
 | 
5,118
 | 
[5],[9] | 
6,000
 | 
[2],[4],[7] | 
 
 | 
| Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7] | 
 
 | 
 | 
18,250
 | 
 | 
 
 | 
| Fair Value | 
[2],[7] | 
 
 | 
 | 
18,250
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 1 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[2],[7] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Fair Value | 
[2],[7] | 
 
 | 
 | 
0
 | 
 | 
 
 | 
| Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2 | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
[5] | 
18,250
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
[5] | 
18,250
 | 
 | 
 
 | 
 | 
 
 | 
| Debt Securities | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
538,563
 | 
 | 
510,604
 | 
 | 
 
 | 
| Fair Value | 
 | 
497,658
 | 
 | 
493,045
 | 
 | 
 
 | 
| Debt Securities | Investment, Identifier [Axis]: J.R. Hobbs Co. and The Mountain Corporation | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
$ 63,400
 | 
 | 
 
 | 
 | 
 
 | 
| Cost percentage | 
 | 
11.80%
 | 
 | 
 
 | 
 | 
 
 | 
| Fair Value | 
 | 
$ 32,800
 | 
 | 
 
 | 
 | 
 
 | 
| Fair value percentage | 
 | 
6.60%
 | 
 | 
 
 | 
 | 
 
 | 
| Debt Securities | Investment, Identifier [Axis]: J.R. Hobbs, The Mountain, and SFEG Holdings, Inc. | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Summary of Investment Holdings [Line Items] | 
 | 
 
 | 
 | 
 
 | 
 | 
 
 | 
| Cost | 
 | 
 
 | 
 | 
$ 77,200
 | 
 | 
 
 | 
| Cost percentage | 
 | 
 
 | 
 | 
15.10%
 | 
 | 
 
 | 
| Fair Value | 
 | 
 
 | 
 | 
$ 60,000
 | 
 | 
 
 | 
| Fair value percentage | 
 | 
 
 | 
 | 
12.20%
 | 
 | 
 
 | 
 | 
 |