Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
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	319	0	319
Net income (loss)	0	0	(3,660)	(3,660)
Dividends	$ 0	0	(1,236)	(1,236)
Balance (in shares) at Mar. 31, 2020	30,420
Balance at Mar. 31, 2020	$ 304	102,534	84,115	186,953
Balance (in shares) at Dec. 31, 2020	30,610
Balance at Dec. 31, 2020	$ 306	103,399	81,555	185,260
Stock-based compensation	$ 0	282	0	282
Stock issued on vesting of RSUs (in shares)	4
Stock issued on vesting of RSUs	$ 0	0	0	0
Taxes paid on vesting of RSUs (in shares)	(1)
Taxes paid on vesting of RSUs	$ 0	(2)	0	(2)
Net income (loss)	$ 0	0	(1,032)	(1,032)
Balance (in shares) at Mar. 31, 2021	30,613
Balance at Mar. 31, 2021	$ 306	$ 103,679	$ 80,523	$ 184,508