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Note 12 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

		Year Ended December 31,
		2021				2020				2019
Cost of sales		$	1,003			$	822			$	383
Selling, general, and administrative expense			2,213				2,266				1,326
Total		$	3,216			$	3,088			$	1,709

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, 2020			129,572			$	25.86
RSUs and PSAs granted			90,368				33.30
RSUs and PSAs vested (2)			(58,809	)			25.53
Unvested RSUs and PSAs as of December 31, 2021			161,131				30.26

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