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Consolidated Statements of Changes in Stockholders' Equity - 6 months ended Jun. 30, 2018 - USD ($)
Total
Common Stock
Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit
Beginning Balance, issued and outstanding (in shares) at Dec. 31, 2017   8,895,094      
Beginning Balance at Dec. 31, 2017 $ 17,980,689 $ 8,895 $ 126,718,186 $ (213,884) $ (108,532,508)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net loss (5,230,936)       (5,230,936)
Other comprehensive loss (197,929)     (197,929)  
Issuance of common stock and warrants, net of expenses (in shares)   3,692,307      
Issuance of common stock and warrants, net of expenses 10,616,048 $ 3,692 10,612,356    
Exercise of warrants for common stock (in shares)   249,824      
Exercise of warrants for common stock 811,928 $ 250 811,678    
Share based compensation (in shares)   11,151      
Share based compensation 120,089 $ 11 120,078    
Ending Balance, issued and outstanding (in shares) at Jun. 30, 2018   12,848,376      
Ending Balance at Jun. 30, 2018 $ 24,099,889 $ 12,848 $ 138,262,298 $ (411,813) $ (113,763,444)