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	1				1
Stock-based compensation expense	3		3
Net loss	(31)			(31)
Ending Balance at Mar. 31, 2019	12,698	$ 339	2,022	10,304	33
Ending Balance, Shares at Mar. 31, 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	3		3
Net loss	(91)			(91)
Ending Balance at Mar. 31, 2020	$ 12,803	$ 339	$ 2,033	$ 10,431	$ 0
Ending Balance, Shares at Mar. 31, 2020		3,395,521