Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net (loss)/income	$ (8,897,529)	$ 1,629,777
Adjustments to reconcile net (loss)/income to net cash provided by operating activities:
Depreciation and other amortization	133,163	137,724
Loss/(gain) on change in fair value of warrant liability	16,065	(3,136,265)
Stock-based compensation	259,016	408,894
Deferred income taxes, net	(2,153,695)	505,678
Loss on extinguishment of Term Loan	4,981,461
Non-cash interest expense	887,132	1,108,916
Changes in assets and liabilities:
Accounts receivable	2,482,354	(2,140,821)
Inventory	(4,086,487)	891,133
Prepaid expenses and other assets	22,259	508,400
Accounts payable, accrued expenses and other liabilities	(1,624,681)	(1,181,885)
Deferred revenue	11,303,389	1,277,828
Net cash provided by operating activities	3,322,447	9,379
Cash flows from investing activities:
Capital expenditures	(15,501)	(8,951)
Net cash used in investing activities	(15,501)	(8,951)
Cash flows from financing activities:
Payment of employee tax obligations for common stock tendered	(9,746)	(56,590)
Repurchase of common stock	(993,375)
Repayment of Term Loan	(85,913,459)
Net cash used in financing activities	(86,916,580)	(56,590)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(83,609,634)	(56,162)
Cash, cash equivalents and restricted cash at the beginning of period	160,986,934	180,396,910
Cash, cash equivalents and restricted cash at end of period	77,377,300	180,340,748
Supplemental disclosure of non-cash activities:
Conversion of warrants to common stock		1,172,801
Issuance of common stock upon cashless exercise		$ 118,500