CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 60,247	$ 74,229
Marketable securities		6,989
Accounts receivable, net	12,943	9,729
Inventories, net	14,507	14,486
Prepaid expenses and other current assets	3,977	6,764
Total current assets	91,674	112,197
Property and equipment, net	10,425	10,174
Restricted cash	304	303
Demo inventory, net	1,967	2,084
Intangible assets, net	19,496	20,048
Goodwill	18,262	18,262
Operating lease right of use assets, net	10,187	10,785
Financing lease right of use assets, net	1,290	1,490
Other assets	692	688
Total assets	154,297	176,031
Current liabilities
Accounts payable	8,683	10,628
Accrued expenses and other current liabilities	14,300	16,519
Current portion of operating lease liabilities	2,975	3,009
Current portion of financing lease liabilities	608	620
Deferred revenue	6,657	6,279
Total current liabilities	33,223	37,055
Deferred revenue, net of current portion	2,545	2,114
Long-term debt, net of debt discount	63,455	63,277
Deferred tax liability, net	87	87
Operating lease liabilities, net of current portion	7,698	8,203
Financing lease liabilities, net of current portion	539	675
Contingent consideration liability (Note 4), net of current portion	4,626	6,039
Total liabilities	112,173	117,450
Stockholders' equity
Preferred Stock, $0.00001 par value; 10,000,000 shares authorized; 0 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively
Common Stock, $0.00001 par value; 500,000,000 shares authorized at March 31, 2023 and December 31, 2022; 38,399,071 and 38,288,188 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	2	2
Additional paid in capital	227,672	225,333
Accumulated deficit	(185,550)	(166,748)
Accumulated other comprehensive loss		(6)
Total stockholders' equity	42,124	58,581
Total liabilities and stockholders' equity	$ 154,297	$ 176,031