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Note 13 - Stockholders' Equity - Stockholders' Equity Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Balances	$ 96,657
Exercise of stock options	0
Stock-based compensation	2,246
Net income	(19,083)	$ (3,020)
Other comprehensive income (loss)	(168)
Balances	$ 79,652
Common Stock [Member]
Balances (in shares)	10,817,110
Balances	$ 31,868
Exercise of stock options (in shares)	0
Exercise of stock options	$ 0
Stock-based compensation (in shares)	14,325
Stock-based compensation	$ 593
Other comprehensive income (loss)	$ 0
Balances (in shares)	10,831,435
Balances	$ 32,461
Additional Paid-in Capital [Member]
Balances	8,106
Exercise of stock options	0
Stock-based compensation	1,653
Other comprehensive income (loss)	0
Balances	9,759
Retained Earnings [Member]
Balances	55,899
Exercise of stock options	0
Stock-based compensation	0
Net income	(19,083)
Other comprehensive income (loss)	0
Balances	36,816
AOCI Attributable to Parent [Member]
Balances	784
Exercise of stock options	0
Stock-based compensation
Other comprehensive income (loss)	(168)
Balances	$ 616

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