Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2016	$ 339	$ 1,953	$ 10,057	$ (29)	$ 12,320
Beginning Balance, Shares at Dec. 31, 2016	3,395,521
Other Comprehensive Income				41	41
Stock-based compensation expense		51			51
Net income (loss)			295		295
Ending Balance at Dec. 31, 2017	$ 339	2,004	10,352	12	12,707
Ending Balance, Shares at Dec. 31, 2017	3,395,521
Other Comprehensive Income				13	13
Stock-based compensation expense		15			15
Change in accounting policy			(7)	7	0
Net income (loss)			(10)		(10)
Ending Balance at Dec. 31, 2018	$ 339	$ 2,019	$ 10,335	$ 32	$ 12,725
Ending Balance, Shares at Dec. 31, 2018	3,395,521