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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES    
Net loss $ (40,833,409) $ (42,023,504)
Adjustments to reconcile net loss to net cash flows used in operating activities:    
Depreciation of fixed assets 69,000 19,216
Amortization of intangible assets 33,888 24,643
(Recovery of) provision for doubtful accounts (18,106) 447,388
Share-based compensation 3,051,357 9,200,844
Changes in operating assets and liabilities:    
Accounts receivable 1,122,386 (1,874,980)
Inventory (337,694) (193,503)
Other current assets (58,601) 1,001,120
Accounts payable 749,520 (86,786)
Other current liabilities (2,443,867) (1,239,743)
Net cash used in operating activities (38,665,526) (34,725,305)
CASH FLOWS FROM INVESTING ACTIVITIES    
Patent costs (367,602) (393,221)
Purchase of fixed assets (35,849) (265,036)
Payment of security deposit (4,864)
Net cash used in investing activities (403,451) (663,121)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from sale of common stock, net of costs 134,863,475
Proceeds from exercise of warrants 3,798,999 1,373,000
Proceeds from exercise of options 212,360 978,042
Net cash provided by financing activities 4,011,359 137,214,517
(Decrease) increase in cash (35,057,618) 101,826,091
Cash, beginning of period 131,534,101 64,706,355
Cash, end of period $ 96,476,483 $ 166,532,446