CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash	$ 6,525	$ 8,939
Restricted cash	61	61
Accounts receivable, net	555	849
Inventory	1,718	1,821
Prepaid expenses and other current assets	1,441	1,081
Total current assets	10,300	12,751
Property and equipment, net	122	159
Goodwill	6,229	7,367
Intangibles, net	6,982	7,562
Operating lease - right of use asset, net	532	659
Other assets	64	109
Total assets	24,229	28,607
Current liabilities:
Accounts payable	553	259
Accrued expenses and other current liabilities	1,147	959
Current portion of deferred revenue	736	783
Current portion of operating lease liabilities	395	492
Total current liabilities	2,831	2,493
Long-term liabilities:
Operating lease liabilities, net of current portion	170	236
Deferred revenue, net of current portion	302	381
Total long-term liabilities	472	617
Total liabilities	3,303	3,110
Commitments and contingencies (see Note 11)
Stockholders’ equity:
Common stock, $.0001 par value; 150,000,000 shares authorized; 30,929,331 shares issued and 30,816,048 outstanding at March 31, 2022 and December 31, 2021	3	3
Treasury stock, 113,283 shares of common stock at March 31, 2022 and December 31, 2021	(181)	(181)
Additional paid-in capital	227,549	227,581
Accumulated deficit	(206,445)	(201,906)
Total stockholder's equity	20,926	25,497
Total liabilities and stockholders’ equity	$ 24,229	$ 28,607