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v3.23.2

Note 6 - Fair Value (Details Textual) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) $ / shares | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) $ / shares | Jun. 30, 2022 USD ($)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | $ (111) | $ 0 | $ (111) | $ 0
Unrealized Gain (Loss) on Investments | 608 | $ (36) | (6,929) | (2,273)
Equity Securities [Member] |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | (111) |  | (111) |
Debt [Member] |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | 0 |  | 0 |
Warrant [Member] |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | 0 |  | 0 |
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member] |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net | $ 100 |  | 100 |
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |  |  |
Unrealized Gain (Loss) on Investments |  |  | 1,300 |
Fair Value, Inputs, Level 3 [Member] | Debt [Member] |  |  |  |
Unrealized Gain (Loss) on Investments |  |  | (13,100) | (7,000)
Fair Value, Inputs, Level 3 [Member] | Warrant [Member] |  |  |  |
Unrealized Gain (Loss) on Investments |  |  | $ (1,900) | $ 4,700
The 2026 Notes [Member] |  |  |  |
Debt Instrument, Share Price (in dollars per share) | $ / shares | $ 23.35 |  | $ 23.35 |
The 2026 Notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Debt Instrument, Fair Value Disclosure | $ 53,700 |  | $ 53,700 |
The 2027 Notes [Member] |  |  |  |
Debt Instrument, Share Price (in dollars per share) | $ / shares | $ 24.14 |  | $ 24.14 |
The 2027 Notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Debt Instrument, Fair Value Disclosure | $ 55,500 |  | $ 55,500 |
Asset-backed Notes 2019 [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Debt Instrument, Fair Value Disclosure | 30,800 |  | 30,800 |
Asset-backed Notes 2022 [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Debt Instrument, Fair Value Disclosure | $ 100,000 |  | $ 100,000 |
Measurement Input, Hypothetical Market Yields [Member] |  |  |  |
Debt Instrument, Measurement Input |  | 0.25 |  | 0.25

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