Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Income Tax Expense (Benefit), Total	$ (1,059)	$ (477)
Effective Income Tax Rate Reconciliation, Percent, Total	16.41%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate				$ 2,400
Unrecognized Tax Benefits, Period Increase (Decrease), Total	$ 14
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]
Effective Income Tax Rate Reconciliation, Percent, Total	27.00%
Forecast [Member]
Effective Income Tax Rate Reconciliation, Percent, Total			24.80%