Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities
Net income (loss)	$ 686,730	$ (3,334,653)
Adjustments to reconcile net income to cash used in operating activities:
Depreciation	394,154	412,793
Amortization of intangibles	49,491	149,491
Amortization of deferred finance costs	24,657	74,793
Share-based compensation	465,851	625,854
Loss on asset disposal	1,449	20,772
Adjustment of warrants	(2,590,361)	1,029,479
Changes in operating assets and liabilities:
Accounts receivable	(800,856)	617,873
Inventories	(55,486)	775,577
Prepaid expenses and other current assets	(131,116)	(46,427)
Other assets	(1,799)	(7,105)
Accounts payable	(80,066)	(889,868)
Accrued liabilities	(372,289)	(979,526)
Deferred revenue	553,937	(2,497,775)
Other liabilities	86,204	176,905
Net cash used in operating activities	(1,769,500)	(3,871,817)
Cash flows from investing activities
Purchase of fixed assets	(255,554)	(72,082)
Net cash used in investing activities	(255,554)	(72,082)
Cash flows from financing activities
Payments of deferred financing costs		(100,000)
Proceeds from issuance of stock, net of issuance costs	44,621	29,573
Proceeds from warrant exercise	9,864,697
Net cash provided by (used in) financing activities	9,909,318	(70,427)
Net increase (decrease) in cash and cash equivalents	7,884,264	(4,014,326)
Cash and cash equivalents at beginning of period	3,686,302	8,501,392
Cash and cash equivalents at end of period	$ 11,570,566	$ 4,487,066