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Note 9 - Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
		2020				2019				2020				2019
Cost of sales		$	179			$	118			$	321			$	124
Selling, general, and administrative expense			794				535				1,112				551
Total		$	973			$	653			$	1,433			$	675

Schedule of Unvested Restricted Stock Units and Performance Share Awards Activity [Table Text Block]

		Number of RSUs and PSAs (1)				Weighted-Average Grant Date Fair Value
Unvested RSUs and PSAs as of December 31, 2019			85,170			$	23.56
RSUs and PSAs granted			97,834				26.61
Unvested RSUs and PSAs canceled			(3,752	)			23.56
RSUs and PSAs vested (2)			(49,680	)			23.56
Unvested RSUs and PSAs as of June 30, 2020			129,572				25.86

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