Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 70,931	$ 94,141
Accounts receivable, net	11,391	7,706
Inventory	7,185	6,563
Current portion of net investments in sales-type leases	2,096	2,198
Current portion of prepaid commission expense	1,768	1,559
Current portion of note receivables	95	74
Prepaid expenses and other current assets	1,618	3,090
Total current assets	95,084	115,331
Property and equipment, net	2,067	1,220
Operating lease right-of-use assets	3,614	3,884
Net investments in sales-type leases	1,682	1,697
Prepaid commission expense	7,163	6,763
Long-term note receivable	10,089	10,110
Other assets	3,254	2,218
Total Assets	122,953	141,223
Current liabilities:
Accounts payable	2,350	4,299
Accrued expenses	9,684	8,233
Deferred revenue	1,748	2,501
Current portion of operating lease liabilities	780	670
Current portion of long-term debt, net	4,375
Total current liabilities	18,937	15,703
Long-term debt, net	31,210	35,335
Deferred revenue	1,129	1,471
Operating lease liabilities	3,255	3,539
Total Liabilities	54,531	56,048
Commitments and contingencies (Note 17)
Stockholders' Equity:
Preferred stock, $0.01 par value: 10,000 shares authorized; no shares issued or outstanding on June 30, 2022, and December 31, 2021
Common stock, $0.01 par value: 200,000 shares authorized; 26,856 and 26,395 shares issued and outstanding on June 30, 2022, and December 31, 2021, respectively	268	264
Additional paid-in capital	398,147	393,644
Accumulated deficit	(329,993)	(308,733)
Total Stockholders' Equity	68,422	85,175
Total Liabilities and Stockholders' Equity	$ 122,953	$ 141,223