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Note 13 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

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

		Year Ended December 31,
		2020				2019				2018
Cost of sales		$	822			$	383			$	12
Selling, general, and administrative expense			2,266				1,326				269
Total		$	3,088			$	1,709			$	281

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 December 31, 2020			129,572				25.86

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