Note 2 - Revision of Previously Issued Consolidated Financial Statements (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2020	Dec. 31, 2019
Retained Earnings (Accumulated Deficit), Total	$ (246,915,000)	$ (107,110,000)	[1]		$ 100,200,000
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (140,202,000)	(9,190,000)		$ 1,983,000
Revision of Prior Period, Adjustment [Member]
Retained Earnings (Accumulated Deficit), Total		(2,090,000)	[1]		(133,000)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total		1,300,000		(684,000)
Previously Reported [Member]
Retained Earnings (Accumulated Deficit), Total		(105,020,000)	[1]		$ 100,100,000
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total		(7,900,000)		2,700,000
Adjusted Balance [Member]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total				$ 1,900,000
Accrued Expenses and Other Current Liabilities [Member]
Taxes Payable, Total		$ 272,000

[1] The impact of the error on Accumulated deficit in our Consolidated Balance Sheet as of the year ended December 31, 2019 was negative $133,000, adjusting the ending balance to be $100.2 million when previously reported as $100.1 million.