Note 13 - Shares Outstanding and Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Weighted average basic shares outstanding (in shares)	11,444	11,488
Assumed exercise of stock options and issuance of stock awards (in shares)	15
Weighted average diluted shares outstanding (in shares)	11,459	11,488
Net income	$ 593	$ 2,074
Basic earnings per share (in dollars per share)	$ 0.05	$ 0.18
Diluted earnings per share (in dollars per share)	$ 0.05	$ 0.18
Unvested RSUs (in shares)	255	168