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Stock-Based Compensation, RSU Activity (Q3) (Details)
9 Months Ended
Sep. 30, 2018
USD ($)
$ / shares
shares
Stock-Based Compensation [Abstract]  
Number of shares of common stock received with an RSU (in shares) 1
Unamortized Stock Compensation Expense [Abstract]  
Unamortized stock compensation expense | $ $ 444,667
RSUs [Member]  
Number of RSUs [Roll Forward]  
RSUs outstanding, beginning balance (in shares) 0
Granted (in shares) 601,394
Released (in shares) 0
Forfeited (in shares) 0
RSUs outstanding, ending balance (in shares) 601,394
Weighted Average Grant Price [Roll Forward]  
RSUs outstanding, beginning balance (in dollars per share) | $ / shares $ 0
Granted (in dollars per shares)) | $ / shares 0.85
Released (in dollars per share) | $ / shares 0
Forfeited (in dollars per share)) | $ / shares 0
RSUs outstanding, ending balance (in dollars per share) | $ / shares $ 0.85
Unamortized Stock Compensation Expense [Abstract]  
Period for recognition 10 months 13 days