Note 3 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Expense (Benefit), Total	$ 186	$ 600	$ 2,033	$ 3,519
Effective Income Tax Rate Reconciliation, Percent, Total			25.00%	21.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount			$ 200
Nurse Grid [Member]
Income Tax Expense (Benefit), Total				$ (300)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge				$ 1,200