Note 1 - Summary of Significant Accounting Policies - Amortization Expense Classification (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Capitalized contract cost	$ 438	$ 636	$ 1,384	$ 2,073
Direct Expenses [Member]
Capitalized contract cost	40	40	111	113
Selling, General and Administrative Expenses [Member]
Capitalized contract cost	$ 398	$ 596	$ 1,273	$ 1,960