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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (24,401,829)	$ (21,156,492)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	38,424	33,600
Amortization of intangible assets	21,197	16,099
Provision for (recovery of) doubtful accounts	22,955	(1,603)
Share-based compensation	1,751,358	1,413,195
Changes in operating assets and liabilities:
Accounts receivable	(790,885)	580,943
Inventory	(135,514)	(262,297)
Other current assets	1,506,152	(253,518)
Accounts payable	2,186,224	(1,212,236)
Other current liabilities	152,223	316,638
Net cash used in operating activities	(19,649,695)	(20,525,671)
CASH FLOWS FROM INVESTING ACTIVITIES
Patent costs	(142,136)	(107,487)
Purchase of fixed assets	(26,908)	(27,834)
Payment of security deposit	(11,486)
Net cash used in investing activities	(180,530)	(135,321)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of options	44,057	192,310
Proceeds from exercise of warrants		2,460,000
Net cash provided by financing activities	44,057	2,652,310
Decrease in cash	(19,786,168)	(18,008,682)
Cash, beginning of period	127,135,628	131,534,101
Cash, end of period	$ 107,349,460	$ 113,525,419

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