Condensed Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash	$ 16,857,941	$ 9,301,406
Accounts receivable, net	7,954,625	3,527,078
Inventories, net	3,315,789	767,986
Prepaid expenses and other current assets	697,946	296,127
Total current assets	28,826,301	13,892,597
Fixed assets, net	1,607,177	1,504,330
Lease right-of-use assets - operating	235,369	729,330
Lease right-of-use assets - finance	2,135,788	1,606,387
Total assets	32,804,635	17,732,644
Current liabilities:
Accounts payable	6,123,990	2,011,827
Accrued liabilities	2,622,722	1,980,204
Current portion of lease liabilities - operating	242,957	842,452
Current portion of lease liabilities - finance	914,671	724,329
Supplier financings	209,312
Total current liabilities	10,113,652	5,558,812
Non-current portion of lease liabilities - finance	1,337,686	973,189
Total liabilities	11,451,338	6,532,001
Commitments and contingencies (see Note 10)
Shareholders’ equity:
Preferred stock, $0.0001 par value, 5,000,000 authorized; 2,133 shares issued and outstanding at December 31, 2019 and September 30, 2020.
Common stock, $0.0001 par value, 150,000,000 authorized; 5,473,848 issued and outstanding at December 31, 2019; 13,396,570 issued and outstanding at September 30, 2020.	1,340	547
Additional paid-in capital	286,780,895	256,917,285
Accumulated deficit	(265,428,938)	(245,717,189)
Total shareholders’ equity	21,353,297	11,200,643
Total liabilities and shareholders’ equity	$ 32,804,635	$ 17,732,644