Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 4,929,175	$ 3,126,206
Accounts receivable, net	633,146	298,967
Inventories	1,050,293	1,163,714
Collaborator Payments Receivable	0	189,008
Prepaid expenses and other current assets	677,526	652,919
Total current assets	7,290,140	5,430,814
Fixed assets, net	205,676	273,448
Operating Lease, Right-of-Use Asset	815,558	1,159,774
Other long-term assets	28,664	29,650
Total assets	8,340,038	6,893,686
Current liabilities:
Accounts payable	192,356	725,658
Accrued expenses and compensation	1,011,228	1,443,574
Accrued Sales Return provisions	586,000	689,000
Operating Lease, Liability, Current	596,779	588,546
Total current liabilities	2,386,363	3,446,778
Operating Lease, Liability, Noncurrent	581,903	916,674
Total liabilities	2,968,266	4,363,452
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.0001 par value; 25,000,000 shares authorized at June 30, 2020 and December 31, 2019; 3,784,657 and 1,400,674 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	378	140
Additional paid-in capital	201,927,426	197,319,698
Accumulated deficit	(196,556,033)	(194,789,605)
Total stockholders’ equity	5,371,772	2,530,234
Total liabilities and stockholders’ equity	8,340,038	6,893,686
Non-Convertible Preferred Stock
Stockholders’ equity:
Preferred stock	0	0
Convertible preferred stock
Stockholders’ equity:
Preferred stock	1	1
Total stockholders’ equity	$ 1	$ 1