Quarterly report pursuant to Section 13 or 15(d)

INVESTMENTS - Narrative (Details)

v3.23.2
INVESTMENTS - Narrative (Details)
$ in Thousands
 1 Months Ended 3 Months Ended
Jun. 30, 2023
USD ($)
portfolioCompany
industry
state
May 31, 2023
USD ($)
Jun. 30, 2023
USD ($)
portfolioCompany
industry
state
Jun. 30, 2022
USD ($)
Mar. 31, 2023
USD ($)
Summary of Investment Holdings [Line Items]          
Purchase of investments     $ 47,975 $ 27,800  
Dividend income     1,907 $ 1,556  
Cost $ 767,985   $ 767,985   $ 720,630 [1]
Number of investment portfolio company | portfolioCompany 25   25    
Number of states which have invested in the company location | state 19   19    
Number of industries that have made investments | industry 15   15    
Investments owned, fair value $ 800,078   $ 800,078   753,543 [1]
Uncollectible receivables allowance, minimum required day for uncollectible adjustment     90 days    
Gross receivables from portfolio companies 2,300   $ 2,300   2,200
Allowance for uncollectible receivables 1,600   1,600   1,600
Secured First Lien Debt          
Summary of Investment Holdings [Line Items]          
Cost 486,139   486,139   471,439
Investments owned, fair value 452,215   452,215   437,517
Preferred Equity          
Summary of Investment Holdings [Line Items]          
Cost 152,374   152,374   149,099
Investments owned, fair value 214,258   214,258   222,585
Secured Second Lien Debt          
Summary of Investment Holdings [Line Items]          
Cost 109,158   109,158   84,158
Investments owned, fair value 104,794   104,794   75,734
Common Equity/ Equivalents          
Summary of Investment Holdings [Line Items]          
Cost 20,314   20,314   15,934
Investments owned, fair value 28,811   28,811   $ 17,707
Home Concepts Acquisition, Inc          
Summary of Investment Holdings [Line Items]          
Purchase of investments   $ 15,300      
Home Concepts Acquisition, Inc | Secured First Lien Debt          
Summary of Investment Holdings [Line Items]          
Purchase of investments   12,000      
Home Concepts Acquisition, Inc | Preferred Equity          
Summary of Investment Holdings [Line Items]          
Purchase of investments   $ 3,300      
Old World Christmas, Inc.          
Summary of Investment Holdings [Line Items]          
Purchase of investments 2,500        
Proceeds from equity 2,200        
Dividend income 1,900        
Realized gain on preferred equity 300        
Nth Degree Investment Group, LLC          
Summary of Investment Holdings [Line Items]          
Purchase of investments 30,000        
Nth Degree Investment Group, LLC | Secured Second Lien Debt          
Summary of Investment Holdings [Line Items]          
Purchase of investments 25,000        
Nth Degree Investment Group, LLC | Common Equity/ Equivalents          
Summary of Investment Holdings [Line Items]          
Purchase of investments 5,000        
Specialty Knives & Tools, LLC          
Summary of Investment Holdings [Line Items]          
Realized gain on preferred equity 900        
Net proceeds from the sale of investments 1,500        
Cost 600   600    
Investment Portfolio Benchmark | Customer Concentration Risk | Five Largest Portfolio Investments          
Summary of Investment Holdings [Line Items]          
Investments owned, fair value $ 321,100   $ 321,100    
Concentration risk, percentage     40.10%    
[1] Cumulative gross unrealized appreciation for federal income tax purposes is $150.4 million; cumulative gross unrealized depreciation for federal income tax purposes is $119.3 million. Cumulative net unrealized appreciation is $31.1 million, based on a tax cost of $722.4 million.