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	636	0	636
Net loss	$ 0	0	(3,406)	(3,406)
Stock issued on vesting of RSUs (in shares)	70
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	25
Taxes paid on vesting of RSUs	$ 0	(17)	0	(17)
Balance (in shares) at Jun. 30, 2020	30,465
Balance at Jun. 30, 2020	$ 305	102,833	84,369	187,507
Taxes paid on vesting of RSUs (in shares)	(25)
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
Stock-based compensation	0	317	0	317
Net loss	$ 0	0	254	254
Stock issued on vesting of RSUs (in shares)	70
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	25
Taxes paid on vesting of RSUs	$ 0	(17)	0	(17)
Balance (in shares) at Jun. 30, 2020	30,465
Balance at Jun. 30, 2020	$ 305	102,833	84,369	187,507
Taxes paid on vesting of RSUs (in shares)	(25)
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	567	0	567
Net loss	$ 0	0	(3,996)	(3,996)
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)
Balance (in shares) at Jun. 30, 2021	30,613
Balance at Jun. 30, 2021	$ 306	103,964	77,559	181,829
Taxes paid on vesting of RSUs (in shares)	1
Balance (in shares) at Mar. 31, 2021	30,613
Balance at Mar. 31, 2021	$ 306	103,679	80,523	184,508
Stock-based compensation	0	285	0	285
Net loss	$ 0	0	(2,964)	(2,964)
Balance (in shares) at Jun. 30, 2021	30,613
Balance at Jun. 30, 2021	$ 306	$ 103,964	$ 77,559	$ 181,829