Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2017	$ 12,707	$ 339	$ 2,004	$ 10,352	$ 12
Beginning Balance, Shares at Dec. 31, 2017		3,395,521
Other comprehensive income	7				7
Stock-based compensation expense	6		6
Change in accounting policy	0			(7)	7
Net income (loss)	(245)			(245)
Ending Balance at Jun. 30, 2018	12,475	$ 339	2,010	10,100	26
Ending Balance, Shares at Jun. 30, 2018		3,395,521
Beginning Balance at Mar. 31, 2018	12,508	$ 339	2,008	10,143	18
Beginning Balance, Shares at Mar. 31, 2018		3,395,521
Other comprehensive income	8				8
Stock-based compensation expense	2		2
Net income (loss)	(43)			(43)
Ending Balance at Jun. 30, 2018	12,475	$ 339	2,010	10,100	26
Ending Balance, Shares at Jun. 30, 2018		3,395,521
Beginning Balance at Dec. 31, 2018	12,725	$ 339	2,019	10,335	32
Beginning Balance, Shares at Dec. 31, 2018		3,395,521
Other comprehensive income	8				8
Stock-based compensation expense	5		5
Net income (loss)	72			72
Ending Balance at Jun. 30, 2019	12,810	$ 339	2,024	10,407	40
Ending Balance, Shares at Jun. 30, 2019		3,395,521
Beginning Balance at Mar. 31, 2019	12,698	$ 339	2,022	10,304	33
Beginning Balance, Shares at Mar. 31, 2019		3,395,521
Other comprehensive income	7				7
Stock-based compensation expense	2		2
Net income (loss)	103			103
Ending Balance at Jun. 30, 2019	$ 12,810	$ 339	$ 2,024	$ 10,407	$ 40
Ending Balance, Shares at Jun. 30, 2019		3,395,521