CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Shareholders' equity:
Preferred stock, par value	$ .001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	4,438,578	4,438,578
Preferred stock, shares outstanding	4,438,578	4,438,578
Liquidation value	$ 0	$ 13,808,610
Common stock, par value	$ .001	$ 0.001
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	6,214,884	1,648,657
Common stock, shares outstanding	6,181,044	1,614,817
Treasury stock	33,840	33,840