CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital in Excess of Par Value	Accumulated Deficit
Beginning Balance at Dec. 31, 2020	$ (92,413)	$ 1,178	$ (85,232)	$ (8,359)
Beginning Balance (in shares) at Dec. 31, 2020		117,871,141
Common stock awards under incentive plans	505	$ 1	504
Common stock awards under incentive plans (in shares)		46,875
Net income (loss)	(4,624)			(4,624)
Ending Balance at Mar. 31, 2021	(96,532)	$ 1,179	(84,728)	(12,983)
Ending Balance (in shares) at Mar. 31, 2021		117,918,016
Beginning Balance at Dec. 31, 2021	(145,742)	$ 1,182	(83,286)	(63,638)
Beginning Balance (in shares) at Dec. 31, 2021		118,290,600
Common stock awards under incentive plans	499	$ 1	498
Common stock awards under incentive plans (in shares)		46,875
Net income (loss)	(12,234)			(12,234)
Ending Balance at Mar. 31, 2022	$ (157,477)	$ 1,183	$ (82,788)	$ (75,872)
Ending Balance (in shares) at Mar. 31, 2022		118,337,475