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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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Weighted average basic shares outstanding (in shares)	11,446	11,415	11,445	11,482
Assumed exercise of stock options and issuance of stock awards (in shares)	0	0	0	0
Weighted average diluted shares outstanding (in shares)	11,446	11,415	11,445	11,482
Net income (loss)	$ (6,454)	$ 2,081	$ (5,861)	$ 4,155
Basic earnings per share (in dollars per share)	$ (0.56)	$ 0.18	$ (0.51)	$ 0.36
Diluted earnings per share (in dollars per share)	$ (0.56)	$ 0.18	$ (0.51)	$ 0.36
Unvested RSUs (in shares)	236	167	236	167

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