Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Summary of Significant Accounting Policies [Abstract]        
Net loss $ (2,435,000) $ (1,596,000) $ (8,896,000) $ (7,628,000)
Weighted average number of common shares outstanding:        
Basic and diluted 4,063,660 3,785,216 4,026,726 3,591,233
Net loss attributable to common stockholders per share:        
Basic and diluted $ (0.60) $ (0.42) $ (2.21) $ (2.12)