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Note 6 - Fair Value (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

September 30, 2022

 
  

Fair

  

Valuation Techniques/

 

Unobservable

   

Weighted

 

Investment Type

 

Value

  

Methodologies

 

Input

 

Range

 

Average(1)

 
      

(Dollars in thousands, except per share data)

      

Debt investments

 $605,719  

Discounted Expected Future Cash Flows

 

Hypothetical Market Yield

 3% – 25%  14%
               
   3,313  

Multiple Probability Weighted Cash Flow Model

 

Probability Weighting

 25%  25%
               

Warrant investments

  21,894  

Black-Scholes Valuation Model

 

Price Per Share

 

0.000 –1,89999

 $64.53 
        

Average Industry Volatility

 25%  25%
        

Marketability Discount

 20%  20%
        

Estimated Time to Exit (in years)

 1 to 4  2 
               

Other investments

  1,300  

Multiple Probability Weighted Cash Flow Model

 

Discount Rate

 25%  25%
        

Probability Weighting

 100%  100%
               

Equity investments

  2,033  

Last Equity Financing

 

Price Per Share

 

1.000 –215.0303

 $30.09 
               

Total Level 3 investments

 $634,259           

December 31, 2021

 
  

Fair

 

Valuation Techniques/

 

Unobservable

   

Weighted

 

Investment Type

 

Value

 

Methodologies

 

Input

 

Range

 

Average(1)

 
     

(Dollars in thousands, except per share data)

      

Debt investments

 $430,417 

Discounted Expected Future Cash Flows

 

Hypothetical Market Yield

 3% –23%  12%
              
   6,900 

Multiple Probability Weighted Cash Flow Model

 

Probability Weighting

 20% - 50%  33%
              

Warrant investments

  19,837 

Black-Scholes Valuation Model

 

Price Per Share

 

0.000 –980.0000

 $20.35 
       

Average Industry Volatility

 25%  25%
       

Marketability Discount

 20%  20%
       

Estimated Time to Exit (in years)

 1 to 4  2 
              

Other investments

  200 

Multiple Probability Weighted Cash Flow Model

 

Discount Rate

 25%  25%
       

Probability Weighting

 0% –100%  100%
              

Equity investments

  203 

Last Equity Financing

 

Price Per Share

 

0.000 –1.0000

 $0.41 
              

Total Level 3 investments

 $457,557          
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
  

September 30, 2022

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 
  

(In thousands)

 

Investments in money market funds

 $  $7,732  $  $7,732 

Restricted investments in money market funds

 $  $1,617  $  $1,617 

Debt investments

 $  $  $609,032  $609,032 

Warrant investments

     219   21,894   22,113 

Other investments

        1,300   1,300 

Equity investments

  146      2,033   2,179 

Total investments

 $146  $219  $634,259  $634,624 
  

December 31, 2021

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 
  

(In thousands)

 

Investments in money market funds

 $  $7,868  $  $7,868 

Restricted investments in money market funds

 $  $1,359  $  $1,359 

Debt investments

 $  $  $437,317  $437,317 

Warrant investments

     363   19,837   20,200 

Other investments

        200   200 

Equity investments

  155      203   358 

Total investments

 $155  $363  $457,557  $458,075 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Three months ended September 30, 2022

 
  

Debt

  

Warrant

  

Equity

  

Other

     
  

Investments

  

Investments

  

Investments

  

Investments

  

Total

 
  

(In thousands)

 

Level 3 assets, beginning of period

 $551,560  $25,167  $453  $200  $577,380 

Purchase of investments

  94,627            94,627 

Warrants and equity received and classified as Level 3

     964         964 

Principal payments received on investments

  (26,929)        (31)  (26,960)

Proceeds from sale of investments

  (6,088)  (38)        (6,126)

Net realized (loss) gain on investments

  (8,492)  266      31   (8,195)

Unrealized appreciation (depreciation) included in earnings

  8,095   (3,348)  (420)  (100)  4,227 

Transfer out of Level 3

     (1,117)        (1,117)

Transfer out of debt investments

  (3,200)     2,000   1,200    

Other

  (541)           (541)

Level 3 assets, end of period

 $609,032  $21,894  $2,033  $1,300  $634,259 
  

Three months ended September 30, 2021

 
  

Debt

  

Warrant

  

Equity

  

Other

     
  

Investments

  

Investments

  

Investments

  

Investments

  

Total

 
  

(In thousands)

 

Level 3 assets, beginning of period

 $385,814  $15,102  $237  $1,700  $402,853 

Purchase of investments

  98,592            98,592 

Warrants and equity received and classified as Level 3

     1,394         1,394 

Principal payments received on investments

  (53,588)           (53,588)

Proceeds from sale of investments

  (34)  (1,519)        (1,553)

Net realized (loss) gain on investments

  (40)  1,384         1,344 

Unrealized appreciation (depreciation) included in earnings

  798   3,353   149   (375)  3,925 

Other

  (1,606)           (1,606)

Level 3 assets, end of period

 $429,936  $19,714  $386  $1,325  $451,361 
  

Nine months ended September 30, 2022

 
  

Debt

  

Warrant

  

Equity

  

Other

     
  

Investments

  

Investments

  

Investments

  

Investments

  

Total

 
  

(In thousands)

 

Level 3 assets, beginning of period

 $437,317  $19,837  $203  $200  $457,557 

Purchase of investments

  348,097      250      348,347 

Warrants and equity received and classified as Level 3

     2,441         2,441 

Principal payments received on investments

  (114,120)        (313)  (114,433)

Proceeds from sale of investments

  (49,088)  (464)        (49,552)

Net realized (loss) gain on investments

  (8,492)  535      (1,137)  (9,094)

Unrealized appreciation (depreciation) included in earnings

  1,128   662   (420)  1,350   2,720 

Transfer out of Level 3

     (1,117)        (1,117)

Transfer out of debt investments

  (3,200)     2,000   1,200    

Other

  (2,610)           (2,610)

Level 3 assets, end of period

 $609,032  $21,894  $2,033  $1,300  $634,259 
  

Nine months ended September 30, 2021

 
  

Debt

  

Warrant

  

Equity

  

Other

     
  

Investments

  

Investments

  

Investments

  

Investments

  

Total

 
  

(In thousands)

 

Level 3 assets, beginning of period

 $333,495  $12,736  $2,117  $1,700  $350,048 

Purchase of investments

  217,252            217,252 

Warrants and equity received and classified as Level 3

     2,313         2,313 

Principal payments received on investments

  (119,260)           (119,260)

Proceeds from sale of investments

  (135)  (3,159)     (13)  (3,307)

Net realized (loss) gain on investments

  (5,035)  2,566         (2,469)

Unrealized appreciation (depreciation) included in earnings

  5,609   5,329   (1,682)  (362)  8,894 

Transfer out of Level 3

     (71)  (49)     (120)

Other

  (1,990)           (1,990)

Level 3 assets, end of period

 $429,936  $19,714  $386  $1,325  $451,361