Note 13 - Shareholders' Equity - Authorized Share Repurchase Plan (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Maximum authorized share repurchase amount (1)	[1]	$ 7,500	$ 7,500
Number of shares repurchased under the plan (shares) (in shares)		0	129,095
Amount paid for shares repurchased		$ 0	$ 2,938
Weighted average price paid per share (in dollars per share)		$ 0	$ 22.76
Remaining amount of shares authorized to be purchased under the plan (in dollars)		$ 7,500	$ 4,562

[1] Common shares can be purchased in the open market or privately negotiated transactions over the next twelve months from the date of plan authorization.