Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net earnings available to common stockholders	$ 7,880	$ 5,573	$ 11,080	$ 1,769
Other comprehensive income (loss):
Currency translation adjustment, net of taxes of ($333), ($3), ($324) and ($30), respectively	2,540	676	11	(1,569)
Unrealized losses on marketable securities arising during the period, net of taxes of $0 in all periods presented	0	0	(1)	0
Change in unfunded SERP liability, net of taxes of ($28), ($20), ($56) and ($40), respectively	100	66	199	132
Other comprehensive income (loss)	2,640	742	209	(1,437)
Comprehensive income	$ 10,520	$ 6,315	$ 11,289	$ 332