Consolidated Statement of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2020	13,629
Balance at Dec. 31, 2020	$ 14	$ (146)	$ 28,811	$ 7,686	$ 36,365
Stock-based compensation	0	0	1,628	0	1,628
Cash dividends	$ 0	0	0	(3,141)	(3,141)
Restricted common stock granted for services (in shares)	112
Restricted common stock granted for services	$ 0	0	0	0	0
Common stock issued for the exercise of options (in shares)	4
Common stock issued for the exercise of options	$ 0	0	33	0	33
Net Income (loss)	$ 0	0	0	11,850	11,850
Balance (in shares) at Dec. 31, 2021	13,745
Balance at Dec. 31, 2021	$ 14	(146)	30,472	16,395	46,735
Stock-based compensation	0	0	2,372	0	2,372
Cash dividends	$ 0	0	0	(3,311)	(3,311)
Restricted common stock granted for services (in shares)	173
Restricted common stock granted for services	$ 0	0	0	0	0
Net Income (loss)	$ 0	0	0	12,458	12,458
Balance (in shares) at Dec. 31, 2022	13,918
Balance at Dec. 31, 2022	$ 14	$ (146)	$ 32,844	$ 25,542	$ 58,254