Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 114,305	$ 112,250
Restricted Cash and Cash Equivalents, Current	625	898
Short-term investments	3,297	84,282
Accounts receivable, net	42,982	31,506
Inventory, net	48,849	43,273
Prepaid expenses and other	11,387	14,565
Total current assets	221,445	286,774
Property and equipment, net	47,939	44,457
Operating lease right-of-use assets	15,458	17,581
Other assets	4,148	4,600
Total assets	288,990	353,412
Current liabilities:
Accounts payable	20,868	16,619
Accrued liabilities	8,649	7,884
Accrued compensation and other employee benefits	13,110	17,494
Customer deposits	2,079	1,757
Deferred revenue, current portion	12,287	9,588
Operating lease liabilities, current portion	5,440	5,518
Total current liabilities	62,433	58,860
Deferred revenue, net of current portion	4,836	3,754
Long-term debt, net	227,379	226,622
Operating lease liabilities, net of current portion	15,803	18,362
Total liabilities	310,451	307,598
Commitment and contingencies (Note 10)
Stockholders’ equity (deficit):
Preferred stock, $0.0001 par value, 15,000 shares authorized; none issued	0	0
Common stock, $0.0001 par value, 150,000 shares authorized; 47,526 and 46,719 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively	5	5
Additional paid-in capital	872,732	855,694
Accumulated other comprehensive loss (income)	4	(589)
Accumulated deficit	(894,202)	(809,296)
Total stockholders’ equity (deficit)	(21,461)	45,814
Total liabilities and stockholders’ equity (deficit)	$ 288,990	$ 353,412