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 [Member]
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
Beginning Balance at Dec. 31, 2019	12,891	$ 339	2,030	10,522	0
Beginning Balance, Shares at Dec. 31, 2019		3,395,521
Other comprehensive income	0
Stock-based compensation expense	4		4
Net income (loss)	(73)			(73)
Ending Balance at Jun. 30, 2020	12,822	$ 339	2,034	10,449	0
Ending Balance, Shares at Jun. 30, 2020		3,395,521
Beginning Balance at Mar. 31, 2020	12,803	$ 339	2,033	10,431	0
Beginning Balance, Shares at Mar. 31, 2020		3,395,521
Other comprehensive income	0
Stock-based compensation expense	1		1
Net income (loss)	18			18
Ending Balance at Jun. 30, 2020	$ 12,822	$ 339	$ 2,034	$ 10,449	$ 0
Ending Balance, Shares at Jun. 30, 2020		3,395,521