Consolidated Statement of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	30,245
Balance at Dec. 31, 2018	$ 302	$ 100,742	$ 153,830	$ 254,874
Stock-based compensation	$ 0	1,833	0	1,833
Stock issued on vesting of RSUs (in shares)	297
Stock issued on vesting of RSUs	$ 2	(2)	0	0
Taxes paid on vesting of RSUs (in shares)	(122)
Taxes paid on vesting of RSUs	$ 0	(358)	0	(358)
Dividends	0	0	(4,965)	(4,965)
Net income (loss)	$ 0	0	(59,854)	(59,854)
Balance (in shares) at Dec. 31, 2019	30,420
Balance at Dec. 31, 2019	$ 304	102,215	89,011	191,530
Stock-based compensation	$ 0	1,211	0	1,211
Stock issued on vesting of RSUs (in shares)	193
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	(80)
Taxes paid on vesting of RSUs	$ 0	(75)	0	(75)
Dividends	0	0	(1,236)	(1,236)
Net income (loss)	$ 0	0	(6,220)	(6,220)
Other (in shares)	77
Other	$ 1	49	0	50
Balance (in shares) at Dec. 31, 2020	30,610
Balance at Dec. 31, 2020	$ 306	$ 103,399	$ 81,555	$ 185,260