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	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
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	5		5
Net income (loss)	(119)			(119)
Ending Balance at Sep. 30, 2020	12,777	$ 339	2,035	10,403	0
Ending Balance, Shares at Sep. 30, 2020		3,395,521
Beginning Balance at Jun. 30, 2020	12,822	$ 339	2,034	10,449	0
Beginning Balance, Shares at Jun. 30, 2020		3,395,521
Other comprehensive income	0
Stock-based compensation expense	1		1
Net income (loss)	(46)			(46)
Ending Balance at Sep. 30, 2020	$ 12,777	$ 339	$ 2,035	$ 10,403	$ 0
Ending Balance, Shares at Sep. 30, 2020		3,395,521