Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2017	6,160		668
Balance at Dec. 31, 2017	$ 31	$ 31,022	$ (10,082)	$ (2,113)	$ (238)	$ 18,620
Shares issued–vested (in shares)	15
Shares issued–vested
Tax withholding related to employee stock vesting		(93)				(93)
Stock compensation expense		436				436
Cash dividends				(2,806)		(2,806)
Net income				3,703		3,703
Other comprehensive income (loss)					(1,346)	(1,346)
Balance (in shares) at Sep. 30, 2018	6,175		668
Balance at Sep. 30, 2018	$ 31	31,365	$ (10,082)	(1,216)	(1,584)	18,514
Balance (in shares) at Dec. 31, 2018	6,175		668
Balance at Dec. 31, 2018	$ 31	31,523	$ (10,082)	(1,326)	(1,399)	18,747
Shares issued–vested (in shares)	10
Shares issued–vested
Tax withholding related to employee stock vesting		(33)				(33)
Stock compensation expense		509				509
Cash dividends				(2,978)		(2,978)
Net income				2,072		2,072
Other comprehensive income (loss)					(297)	(297)
Balance (in shares) at Sep. 30, 2019	6,185		668
Balance at Sep. 30, 2019	$ 31	$ 31,999	$ (10,082)	$ (2,232)	$ (1,696)	$ 18,020