Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss from operations	$ (25,962,050)	$ (27,225,631)
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of warrants and embedded derivative		1,870,923
Stock/unit-based compensation	1,470,831	5,631,593
Depreciation and amortization	53,632	21,064
Amortization of marketable securities discount	(358,640)
Cloud computing arrangement implementation costs	(969,424)
Net noncash lease expense	254,524
Noncash portion of litigation settlement	16,692
Other	(49,458)	19,062
Changes in operating assets and liabilities:
Accounts receivable, net	(233,370)	(195,028)
Inventories	(3,049,607)	(424,162)
Prepaid expenses and other current assets	1,310,587	(2,286,602)
Accounts payable	(141,786)	843,637
Accrued expense and other current liabilities	(58,340)	803,831
Deferred rent		(27,524)
Net cash used in operating activities	(27,716,409)	(20,968,837)
Cash flows from investing activities:
Purchase of marketable securities	(20,290,317)	(10,434,519)
Proceeds from maturities of marketable securities	49,266,223	26,916,375
Purchases of property and equipment	(72,825)	(229,774)
Net cash provided by investing activities	28,903,081	16,252,082
Cash flows from financing activities:
Sale of common stock, net of related expenses		79,895,818
Net cash provided by financing activities		79,895,818
Effect of changes in exchange rates on cash and cash equivalents	(54,972)	(45,413)
Net increase in cash and cash equivalents	1,131,700	75,133,650
Cash and cash equivalents – beginning of period	7,600,284	13,224,194
Cash and cash equivalents – end of period	8,731,984	88,357,844
Supplemental schedule of noncash activity:
Prepaid lease payments included in right of use assets	68,059
Capitalized cloud computing arrangement costs included in accrued expenses and other liabilities	$ 145,144
Reclass of warrant liability to additional paid in capital		4,110,467
Reclass of deferred financing costs to additional paid in capital		856,985
Deferred financing costs included in accounts payable		2,939
Deferred financing costs included in accrued expenses		1,355,305
Stock dividend distribution in connection with IPO		3,629,092
Series A Preferred Units
Supplemental schedule of noncash activity:
Equity converted to common stock		53,518,463
Series B Preferred Units
Supplemental schedule of noncash activity:
Equity converted to common stock		68,755,544
Common Units
Supplemental schedule of noncash activity:
Equity converted to common stock		$ 40,180,619