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Condensed Consolidated Statement of Stockholders' Equity - 6 months ended Jun. 30, 2018 - 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 ($2.25 per share) 12,937,000 $ 0 12,937,000 0
Shares issued in stock offering ($2.25 per share) (in shares)   5,750,000    
Issuance costs of rights offering (1,014,000) $ 0 (1,014,000) 0
Shares issued for services ($3.50 per share) 17,000 $ 0 17,000 0
Shares issued for services ($3.50 per share) (in shares)   5,000    
Shares issued for board service ($1.85 per share) 100,000 $ 0 100,000 0
Shares issued for board service ($1.85 per share) (in Shares)   54,056    
Share based compensation 111,000 $ 0 111,000 0
Net loss (4,667,000) 0 0 (4,667,000)
Balances at Jun. 30, 2018 $ 9,916,000 $ 2,000 $ 64,592,000 $ (54,678,000)
Balances (in shares) at Jun. 30, 2018   21,417,909