CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance, shares at Dec. 31, 2021		1,782,000
Balance, amount at Dec. 31, 2021	$ 3,193,000	$ 18,000	$ 16,296,000	$ (13,121,000)
Issuance of common stock, net, shares		4,000
Issuance of common stock, net, amount	28,000	$ 0	28,000	0
Value of stock-based compensation	30,000	0	30,000	0
Net income	62,000	$ 0	0	62,000
Balance, shares at Mar. 31, 2022		1,786,000
Balance, amount at Mar. 31, 2022	3,313,000	$ 18,000	16,354,000	(13,059,000)
Balance, shares at Dec. 31, 2022		1,797,000
Balance, amount at Dec. 31, 2022	13,401,000	$ 18,000	16,458,000	(3,075,000)
Issuance of common stock, net, shares		1,000
Issuance of common stock, net, amount	8,000	$ 0	8,000	0
Value of stock-based compensation	22,000	0	22,000	0
Net income	1,648,000	$ 0	0	1,648,000
Balance, shares at Mar. 31, 2023		1,798,000
Balance, amount at Mar. 31, 2023	$ 15,079,000	$ 18,000	$ 16,488,000	$ (1,427,000)