Consolidated Statements Of Stockholders' Equity - USD ($)	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Balance, value at Dec. 31, 2016	$ 6,000	$ 55,787,000	$ (52,515,000)	$ 3,278,000
Balance, shares at Dec. 31, 2016	6,097,723
Net income (loss)			(574,000)	(574,000)
Compensation expense related to options issued		14,000		14,000
Compensation expense related to stock issued, shares	23,503
Shares issued for rights offering	$ 5,000	2,452,000		$ 2,457,000
Shares issued for rights offering, shares	4,498,698
Balance, shares at Dec. 31, 2017	10,619,924			10,619,924
Balance, value at Dec. 31, 2017	$ 11,000	58,253,000	(53,089,000)	$ 5,175,000
Net income (loss)			1,569,000	1,569,000
Compensation expense related to stock issued		23,000		$ 23,000
Compensation expense related to stock issued, shares	19,366
Balance, shares at Dec. 31, 2018	10,639,290			10,639,290
Balance, value at Dec. 31, 2018	$ 11,000	$ 58,276,000	$ (51,520,000)	$ 6,767,000