The share price of a debt investment instrument.

No definition available.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 55
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-Publisher FASB
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Period Type:	instant

- Definition

Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized gain (loss) on investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Note 6 - Fair Value (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Unrealized Gain (Loss) on Investments	$ (5,552)	$ 3,205	$ 313
Fair Value, Inputs, Level 1 [Member] \| Warrant [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3	1,300
Fair Value, Inputs, Level 1 [Member] \| Investment One [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		100
Fair Value, Inputs, Level 1 [Member] \| Investment Two [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		200
Fair Value, Inputs, Level 3 [Member] \| Warrant [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3	10
Unrealized Gain (Loss) on Investments	2,600	6,300
Fair Value, Inputs, Level 3 [Member] \| Debt [Member]
Unrealized Gain (Loss) on Investments	(21,000)	(5,600)
Fair Value, Inputs, Level 3 [Member] \| Equity Securities [Member]
Unrealized Gain (Loss) on Investments	(400)
Fair Value, Inputs, Level 2 [Member] \| Warrant [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3	$ 40	$ 100
The 2026 Notes [Member]
Debt Instrument, Share Price (in dollars per share) \| $ / shares	$ 23.45
The 2026 Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Instrument, Fair Value Disclosure, Total	$ 53,900
The 2027 Notes [Member]
Debt Instrument, Share Price (in dollars per share) \| $ / shares	$ 23.20
The 2027 Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Debt Instrument, Fair Value Disclosure, Total	$ 53,400
Asset-backed Notes 2019 [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Instrument, Fair Value Disclosure, Total	42,600
Asset-backed Notes 2022 [Member] \| Fair Value, Inputs, Level 3 [Member]
Debt Instrument, Fair Value Disclosure, Total	$ 100,000
Measurement Input, Hypothetical Market Yields [Member]
Debt Instrument, Measurement Input	0.25