STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Total
Balances at Dec. 31, 2017	$ 119,000	$ 15,361,000	$ (639,000)	$ 14,841,000
Balances, shares at Dec. 31, 2017	11,914,000
Issuance of common stock, net		49,000		49,000
Issuance of common stock, net, shares	49,000
Value of stock-based compensation		67,000		67,000
Net income (loss)			164,000	164,000
Balances at Mar. 31, 2018	$ 119,000	15,477,000	(475,000)	15,121,000
Balances, shares at Mar. 31, 2018	11,963,000
Balances at Dec. 31, 2018	$ 118,000	15,442,000	760,000	16,320,000
Balances, shares at Dec. 31, 2018	11,840,000
Issuance of common stock, net	$ 1,000	107,000		108,000
Issuance of common stock, net, shares	107,000
Value of stock-based compensation		138,000		138,000
Net income (loss)			(1,096,000)	(1,096,000)
Balances at Mar. 31, 2019	$ 119,000	$ 15,687,000	$ (336,000)	$ 15,470,000
Balances, shares at Mar. 31, 2019	11,947,000