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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Cash flows from operating activities    
Net loss $ (4,245,042) $ (5,724,390)
Adjustments to reconcile net loss to cash provided by (used in) operating activities    
Stock-based compensation expense 195,105 1,043,712
Issuance of restricted stock 72,306 75,466
Depreciation, amortization and accretion 653,313 822,161
Derivative (income) expense (299,734) 70,609
Amortization of prepaid research and development - related party (Note 9) 30,496
Unrealized (gain) on investment (728,100)
Compensation through issuance of stock 509,996
Issuance of warrants to initial investors 589,377
Adjustments to reconcile net loss to net cash used in operating activities:    
(Increase) in accounts receivable (683,806) (347,013)
Decrease (increase) in inventory 140,961 (60,650)
Decrease (increase) in prepaid expenses and other 48,703 (337,525)
(Decrease) in accounts payable and other (559,636) (109,365)
Increase (decrease) in accrued liabilities 120,850 (498,516)
Increase (decrease) in accrued compensation 340,841 (668,792)
(Decrease) increase in deferred rent (1,669) 75
Net cash used in operating activities (4,217,808) (5,332,459)
Cash flows used in investing activities    
Purchases of property and equipment (4,721)
Installment payment for Primsol asset (500,000)
Net cash used in investing activities (504,721)
Cash flows from financing activities    
Issuance of preferred, common stock and warrants 11,839,995
Issuance costs related to preferred, common stock and warrants (1,402,831)
Issuance of common stock to Lincoln Park Capital 631,481
Costs related to sale of common stock (24,247)
Net cash provided by financing activities 10,437,164 607,234
Net change in cash and cash equivalents 6,219,356 (5,229,946)
Cash and cash equivalents at beginning of period 877,542 8,054,190
Cash and cash equivalents at end of period 7,096,898 2,824,244
Non-cash transactions:    
Warrants issued to investors and underwriters (see Note 5) 4,117,997
Earn-out payment to Nuelle Shareholders 11,589
Primsol accretion included in accounts payable 49,126
Fixed assets included in accounts payable $ 95,866