CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash	$ 10,734	$ 5,058
Restricted cash	61	158
Accounts receivable, net	1,276	3,166
Inventory	1,856	920
Prepaid expenses and other current assets	1,442	691
Total current assets	15,369	9,993
Property and equipment, net	198	573
Goodwill	7,367	7,367
Intangibles, net	8,142	10,140
Operating lease - right of use asset, net	531	903
Other assets	91	167
Total assets	31,698	29,143
Current liabilities:
Current portion of long-term debt	0	2,014
Accounts payable	538	313
Accrued expenses and other current liabilities	990	1,201
Current portion of deferred revenue	956	1,217
Current portion of operating lease liabilities	475	830
Total current liabilities	2,959	5,575
Long-term liabilities:
Long-term debt, net of current portion	0	403
Operating lease liabilities, net of current portion	182	602
Deferred revenue, net of current portion	412	506
Total long-term liabilities	594	1,511
Total liabilities	3,553	7,086
Commitments and contingencies (see Note 12)
Stockholders’ equity:
Common stock, $.0001 par value; 150,000,000 shares authorized; 30,929,331 shares issued and 30,816,048 outstanding at September 30, 2021 and 7,861,912 shares issued and 7,748,629 outstanding at December 31, 2020	3	1
Treasury stock, 113,283 shares of common stock at September 30, 2021 and December 31, 2020	(181)	(181)
Additional paid-in capital	227,519	215,092
Accumulated deficit	(199,196)	(192,855)
Total stockholder's equity	28,145	22,057
Total liabilities and stockholders’ equity	31,698	29,143
Series A-2 Preferred Stock
Stockholders’ equity:
Preferred stock	0	0
Series D Preferred Stock
Stockholders’ equity:
Preferred stock	0	0
Series E Preferred Stock
Stockholders’ equity:
Preferred stock	$ 0	$ 0