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	7		7
Change in accounting policy	0			(7)	7
Net income (loss)	(58)			(58)
Ending Balance at Sep. 30, 2018	12,663	$ 339	2,011	10,287	26
Ending Balance, Shares at Sep. 30, 2018		3,395,521
Beginning Balance at Jun. 30, 2018	12,475	$ 339	2,010	10,100	26
Beginning Balance, Shares at Jun. 30, 2018		3,395,521
Other comprehensive income	0				0
Stock-based compensation expense	1		1
Net income (loss)	187			187
Ending Balance at Sep. 30, 2018	12,663	$ 339	2,011	10,287	26
Ending Balance, Shares at Sep. 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	10				10
Stock-based compensation expense	8		8
Net income (loss)	91			91
Ending Balance at Sep. 30, 2019	12,834	$ 339	2,027	10,426	42
Ending Balance, Shares at Sep. 30, 2019		3,395,521
Beginning Balance at Jun. 30, 2019	12,810	$ 339	2,024	10,407	40
Beginning Balance, Shares at Jun. 30, 2019		3,395,521
Other comprehensive income	2				2
Stock-based compensation expense	3		3
Net income (loss)	19			19
Ending Balance at Sep. 30, 2019	$ 12,834	$ 339	$ 2,027	$ 10,426	$ 42
Ending Balance, Shares at Sep. 30, 2019		3,395,521