Note 10 - Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jul. 31, 2015
Treasury Stock, Value, Acquired, Cost Method	$ 945	$ 779	$ 1,588
Share Repurchase Program Authorized in July 2015 [Member]
Stock Repurchase Program, Authorized Amount						$ 25,000
Treasury Stock, Shares, Acquired (in shares)				0	0
Share Repurchase Program Authorized in May 2021 [Member]
Stock Repurchase Program, Authorized Amount		$ 3,000
Treasury Stock, Shares, Acquired (in shares)				369,274
Treasury Stock, Value, Acquired, Cost Method				$ 1,700
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)				$ 4.67