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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2022
Fair Value Measurements [Abstract]  
Fair Value, Warrants Measured on Recurring Basis

The following table reconciles the beginning and ending balances of the Company’s Level 3 recurring assets for the three and nine months ended September 30, 2022 and 2021 (in thousands):

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended

​

Nine Months Ended

​

​

September 30, 

​

September 30, 

​

    

2022

    

2021

​

2022

    

2021

Fair value of warrants at beginning of period

​

$

144

​

$

157

​

$

142

​

$

187

Unrealized gain (loss) on fair value adjustment for warrants

​

 

1

​

 

4

​

 

3

​

 

(26)

Fair value of warrants at end of period

​

$

145

​

$

161

​

$

145

​

$

161

Fair Value, Investment Securities Measured on Recurring Basis

The fair value of investment securities that were accounted for on a recurring basis for the three and nine months ended September 30, 2022 and 2021 and classified as Level 1 are as follows (in thousands):

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended

​

Nine Months Ended

​

​

September 30, 

​

September 30, 

​

​

2022

​

2021

​

2022

​

2021

Fair value of securities at the beginning of period

​

$

52

​

$

898

​

$

308

​

$

1,448

Securities sold

​

​

—

​

​

—

​

​

—

​

​

(619)

Unrealized (loss) gain on fair value adjustment for equity securities

​

​

(10)

​

​

(492)

​

​

(266)

​

​

(423)

Fair value of investment securities at the end of period

​

$

42

​

$

406

​

$

42

​

$

406

Summary of Valuation Techniques and Significant Unobservable Inputs Used

The following table summarizes the valuation techniques and significant unobservable inputs used for the Company’s recurring and non-recurring fair value calculation/adjustments categorized as Level 3 in the fair value hierarchy at September  30, 2022 and December 31, 2021:

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​

​

​

​

​

September 30, 2022

​

    

Valuation 

    

Valuation

    

Unobservable

    

Range of Input Values

Name

​

Frequency

​

Technique

​

Inputs

​

(Weighted Average)

Warrants

 

Recurring

 

Black-Scholes formulation

 

Stock price

​

$0.01 - $11.71 ($0.07)

​

 

  

 

  

 

Exercise price

​

$0.02 - $9.00 ($0.07)

​

 

  

 

  

 

Time to maturity (in years)

 

5.16 - 9.19 (5.32)

​

 

  

 

  

 

Risk-free interest rate

 

3.86% - 4.05% (4.04%)

​

 

  

 

  

 

Annualized volatility

 

40.26% - 115.04% (49.88%)

​

​

​

​

​

​

​

​

​

​

December 31, 2021

​

    

Valuation 

    

Valuation

    

Unobservable

    

Range of Input Values

Name

​

Frequency

​

Technique

​

Inputs

​

(Weighted Average)

Warrants

 

Recurring

 

Black-Scholes formulation

 

Stock price

​

$0.01 - $11.71 ($0.07)

​

 

  

 

  

 

Exercise price

​

$0.02 - $9.00 ($0.07)

​

 

  

 

  

 

Time to maturity (in years)

​

5.91 - 9.94 (6.06)

​

 

  

 

  

 

Risk-free interest rate

​

1.35% - 1.58% (1.37%)

​

 

  

 

  

 

Annualized volatility

​

37.90% - 115.04% (55.09%)

Estimated Fair Values of Financial Instruments

The following tables present estimated fair values of the Company’s financial instruments in accordance with the guidance provided by the Financial Instruments Topic of the FASB Accounting Standards Codification at September 30, 2022 and December 31, 2021 (in thousands):

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​

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​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measurements at September 30, 2022

​

    

Carrying

    

​

​

    

​

​

    

​

​

    

​

​

​

​

Amount

​

Level 1

​

Level 2

​

Level 3

​

Total

Financial assets:

 

​

  

 

​

  

 

​

  

 

​

  

 

​

  

Cash and cash equivalents

​

$

3,062

​

$

3,062

​

$

—

​

$

—

​

$

3,062

Investment in equity securities

​

​

42

​

​

42

​

 

—

​

​

—

​

 

42

Warrants, fair value

​

 

145

​

 

—

​

 

—

​

 

145

​

 

145

Financial liabilities:

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Non-recourse debt

​

​

1,247

​

​

—

​

​

—

​

​

1,214

​

​

1,214

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measurements at December 31, 2021

​

    

Carrying

    

​

​

    

​

​

    

​

​

    

​

​

​

​

Amount

​

Level 1

​

Level 2

​

Level 3

​

Total

Financial assets:

 

​

  

 

​

  

 

​

  

 

​

  

 

​

  

Cash and cash equivalents

​

$

4,035

​

$

4,035

​

$

—

​

$

—

​

$

4,035

Investment in equity securities

​

 

308

​

​

308

​

 

—

​

​

—

​

 

308

Warrants, fair value

​

​

142

​

 

—

​

 

—

​

 

142

​

 

142

Financial liabilities:

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Options - short position

​

​

1

​

​

1

​

​

—

​

​

—

​

​

1

Non-recourse debt

​

​

1,633

​

​

—

​

​

—

​

​

1,673

​

​

1,673