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Summary of Significant Accounting Policies (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Numerator:    
Net income (loss) $ (2,780) $ (2,474)
Net income (loss) attributable to non-controlling interest 0 (385)
Net loss available to common stockholders, basic and diluted $ (2,780) $ (2,089)
Denominator:    
Weighted average shares outstanding, basic 15,383,086 4,817,745
Effect of dilutive securities 0 0
Weighted average shares outstanding, diluted 15,383,086 4,817,745
Net loss per common share:    
Basic $ (0.18) $ (0.43)
Diluted $ (0.18) $ (0.43)