Note 8 - INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
INCOME TAXES
Increase (Decrease) in Income Taxes	$ 200
Income Tax Expense (Benefit), Total	$ 1,187	$ 956
Effective Income Tax Rate Reconciliation, Percent, Total	40.00%		14.00%
Unrecognized Tax Benefits, Ending Balance	$ 15,000		$ 14,700
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	2,000		1,900
Unrecognized tax benefits including income tax penalties and interest accrued in long term liabilities	2,600
Unrecognized tax benefits related to income tax penalties and interest accrued in long-term liabilities	700
Unrecognized Tax Benefits In Deferred Tax Assets	13,100
Deferred Tax Assets, Valuation Allowance, Total	51,600		51,600
Net deferred tax assets	$ 67		$ 75