Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities
Net loss	$ (21,613,737)	$ (18,399,322)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	575,717	322,029
Inventory reserve	(50,532)	(31,659)
Stock-based compensation	1,247,481	1,593,947
Non-cash interest expense related to credit facility and other financing activities	45,788	100,005
Gain on sale of fixed assets		(30,662)
Increase/(decrease) in cash resulting from changes in:
Accounts receivable, net	(1,064,457)	(94,769)
Inventory	100,875	(168,115)
Prepaid expenses and other current assets	518,863	494,734
Accounts payable	349,932	332,732
Accrued liabilities	236,927	165,543
Accrued interest	78,649	55,444
Deferred rent	(76,232)	(36,965)
Net cash used in operating activities	(19,650,726)	(15,697,058)
Cash Flows from Investing Activities:
Proceeds from sale of fixed assets		30,662
Purchases of fixed assets	(1,400,180)	(482,065)
Net cash used in investing activities	(1,400,180)	(451,403)
Cash Flows from Financing Activities:
Net proceeds from issuance of common stock and warrants	13,505,094	13,771,301
Proceeds from exercise of common stock warrants	7,498,535
Net proceeds from sale-leaseback transaction	150,848
Payments on equipment financings	(166,348)	(86,227)
Payments on supplier and other third-party financings	(465,279)	(510,123)
Payments on credit facility	(1,934,665)	(1,238,487)
Net cash provided by financing activities	18,588,185	11,936,464
Net decrease in Cash	(2,462,721)	(4,211,997)
Cash at Beginning of Period	4,609,332	8,821,329
Cash at End of Period	2,146,611	4,609,332
Cash paid during the period for:
Interest	358,471	358,632
Income taxes	$ 5,273	$ 2,053