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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Balances at Dec. 31, 2017 $ 2,432,000 $ 2,000 $ 52,441,000 $ (50,011,000)
Balances (in shares) at Dec. 31, 2017   15,608,853    
Shares issued in stock offering 12,937,000 $ 0 12,937,000 0
Shares issued in stock offering (in shares)   5,750,000    
Issuance costs of rights offering (1,014,000) $ 0 (1,014,000) 0
Shares issued for services 9,000 $ 0 9,000 0
Shares issued for services (in shares)   2,500    
Share Based Compensation 50,000   50,000  
Net loss (2,278,000) $ 0 0 (2,278,000)
Balances at Mar. 31, 2018 12,136,000 $ 2,000 64,423,000 (52,289,000)
Balances (in shares) at Mar. 31, 2018   21,361,353    
Balances at Dec. 31, 2018 16,909,000 $ 3,000 76,417,000 (59,511,000)
Balances (in shares) at Dec. 31, 2018   26,697,261    
Shares issued for services 3,000 $ 0 3,000 0
Shares issued for services (in shares)   2,500    
Fair value of stock options issued in payment of accrued compensation 100,000 $ 0 100,000 0
Share Based Compensation 233,000 0 233,000 0
Net loss (2,329,000) 0 0 (2,329,000)
Balances at Mar. 31, 2019 $ 14,916,000 $ 3,000 $ 76,753,000 $ (61,840,000)
Balances (in shares) at Mar. 31, 2019   26,699,761