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Note 14 - Shares Outstanding and Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Weighted average basic shares outstanding (in shares)	11,452	11,420	11,447	11,526
Assumed exercise of stock options and issuance of stock awards (in shares)	0	0	0	0
Weighted average diluted shares outstanding (in shares)	11,452	11,420	11,447	11,526
Net income (loss)	$ (1,520)	$ 591	$ (7,381)	$ 4,746
Basic earnings per share (in dollars per share)	$ (0.13)	$ 0.05	$ (0.64)	$ 0.41
Diluted earnings per share (in dollars per share)	$ (0.13)	$ 0.05	$ (0.64)	$ 0.41
Unvested RSUs (in shares)	234	217	234	217

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