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BALANCE SHEETS (Parenthetical) - USD ($)
Jun. 30, 2018
Dec. 31, 2017
SHAREHOLDERS' EQUITY    
Preferred stock, par value $ 0 $ 0
Preferred stock, authorized shares 10,000,000 10,000,000
Preferred stock, issued shares 4,662,518 4,427,991
Preferred stock, outstanding shares 4,662,518 4,427,991
Preferred stock, liquidation preference $ 19,604,343 $ 18,375,831
Common stock, par value $ 0 $ 0
Common stock, authorized shares 10,000,000 10,000,000
Common stock, issued shares 4,964,529 4,964,529
Common stock, outstanding shares 4,964,529 4,964,529