Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities
Net income (loss)	$ (3,506,790)	$ 686,730
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation	88,774	394,154
Amortization of intangibles		49,491
Amortization of deferred finance costs		24,657
Non-cash lease expense	1,756,757
Share-based compensation	898,836	465,851
Loss on asset disposal		1,449
Adjustment of warrants		(2,590,361)
Changes in operating assets and liabilities:
Accounts receivable	1,190,716	(800,856)
Inventories	(355,050)	(55,486)
Prepaid expenses and other current assets	(58,622)	(131,116)
Other assets	(15,677)	(1,799)
Accounts payable	(694,385)	(80,066)
Accrued liabilities	480,632	(372,289)
Deferred revenue	(388,396)	553,937
Operating lease liability	(1,718,010)
Other liabilities	(380,514)	86,204
Net cash used in operating activities	(2,701,729)	(1,769,500)
Cash flows from investing activities
Purchase of fixed assets	(15,832)	(255,554)
Net cash used in investing activities	(15,832)	(255,554)
Cash flows from financing activities
Proceeds from issuance of stock, net of issuance costs	23,572,048	44,621
Proceeds from warrant exercise		9,864,697
Net cash provided by financing activities	23,572,048	9,909,318
Net increase in cash and cash equivalents	20,854,487	7,884,264
Cash and cash equivalents at beginning of period	10,796,072	3,686,302
Cash and cash equivalents at end of period	$ 31,650,559	$ 11,570,566