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, 2018	30,245
Balance at Dec. 31, 2018	$ 302	$ 100,742	$ 153,830	$ 254,874
Stock-based compensation	$ 0	1,438	0	1,438
Stock issued on vesting of RSUs (in shares)	7
Stock issued on vesting of RSUs	$ 0	0	0	0
Taxes paid on vesting of RSUs (in shares)	(3)
Taxes paid on vesting of RSUs	$ 0	(14)	0	(14)
Dividends	0	0	(3,724)	(3,724)
Net loss	$ 0	0	(67)	(67)
Balance (in shares) at Sep. 30, 2019	30,249
Balance at Sep. 30, 2019	$ 302	102,166	150,039	252,507
Balance (in shares) at Jun. 30, 2019	30,247
Balance at Jun. 30, 2019	$ 302	101,747	155,003	257,052
Stock-based compensation	$ 0	426	0	426
Stock issued on vesting of RSUs (in shares)	3
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	(7)	0	(7)
Dividends	0	0	(1,241)	(1,241)
Net loss	$ 0	0	(3,723)	(3,723)
Balance (in shares) at Sep. 30, 2019	30,249
Balance at Sep. 30, 2019	$ 302	102,166	150,039	252,507
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	927	0	927
Stock issued on vesting of RSUs (in shares)	72
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	(26)
Taxes paid on vesting of RSUs	$ 0	(18)	0	(18)
Dividends	0	0	(1,236)	(1,236)
Net loss	$ 0	0	(1,483)	(1,483)
Balance (in shares) at Sep. 30, 2020	30,466
Balance at Sep. 30, 2020	$ 305	103,123	86,292	189,720
Balance (in shares) at Jun. 30, 2020	30,465
Balance at Jun. 30, 2020	$ 305	102,833	84,369	187,507
Stock-based compensation	$ 0	291	0	291
Stock issued on vesting of RSUs (in shares)	2
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	(1)	0	(1)
Dividends	0	0	0	0
Net loss	$ 0	0	1,923	1,923
Balance (in shares) at Sep. 30, 2020	30,466
Balance at Sep. 30, 2020	$ 305	$ 103,123	$ 86,292	$ 189,720