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Note 12 - Stock-based Compensation - Summary of Outstanding Options (Details)	6 Months Ended
	Jun. 30, 2023 $ / shares shares
Time Vesting Options [Member]
Shares Outstanding (in shares) | shares	662,798
Outstanding, Weighted Average Remaining Contractual Term (Year)	6 years 5 months 19 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 10.00
Shares Exercisable (in shares) | shares	634,465
Time Vesting Options [Member] | Range One [Member]
Lower Range Limit (in dollars per share)	$ 4.01
Upper Range Limit (in dollars per share)	$ 8.00
Shares Outstanding (in shares) | shares	566,673
Outstanding, Weighted Average Remaining Contractual Term (Year)	7 years 1 month 20 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 7.42
Shares Exercisable (in shares) | shares	538,340
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 7.46
Time Vesting Options [Member] | Range Two [Member]
Lower Range Limit (in dollars per share)	$ 8.01
Shares Outstanding (in shares) | shares	96,125
Outstanding, Weighted Average Remaining Contractual Term (Year)	2 years 6 months 10 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 25.22
Shares Exercisable (in shares) | shares	96,125
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 25.22
Performance Vesting Awards [Member]
Shares Outstanding (in shares) | shares	240,000
Outstanding, Weighted Average Remaining Contractual Term (Year)	6 years 11 months 4 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 7.59
Shares Exercisable (in shares) | shares	240,000
Performance Vesting Awards [Member] | Range One [Member]
Lower Range Limit (in dollars per share)	$ 4.01
Upper Range Limit (in dollars per share)	$ 8.00
Shares Outstanding (in shares) | shares	240,000
Outstanding, Weighted Average Remaining Contractual Term (Year)	6 years 11 months 4 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 7.59
Shares Exercisable (in shares) | shares	240,000
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 7.59
Market Vesting Options [Member]
Shares Outstanding (in shares) | shares	733,334
Outstanding, Weighted Average Remaining Contractual Term (Year)	1 year 7 months 20 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 3.00
Shares Exercisable (in shares) | shares	0
Market Vesting Options [Member] | Range One [Member]
Lower Range Limit (in dollars per share)	$ 0.01
Upper Range Limit (in dollars per share)	$ 4.00
Shares Outstanding (in shares) | shares	733,334
Outstanding, Weighted Average Remaining Contractual Term (Year)	1 year 7 months 20 days
Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 3.00
Shares Exercisable (in shares) | shares	0
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 0

X

- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
-Publisher FASB
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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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