Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 121,408	$ 112,250
Restricted Cash and Cash Equivalents, Current	625	898
Short-term investments	33,236	84,282
Accounts receivable, net	34,867	31,506
Inventory, net	46,711	43,273
Prepaid expenses and other	15,011	14,565
Total current assets	251,858	286,774
Property and equipment, net	47,729	44,457
Operating lease right-of-use assets	16,484	17,581
Other assets	4,344	4,600
Total assets	320,415	353,412
Current liabilities:
Accounts payable	20,486	16,619
Accrued liabilities	6,181	7,884
Accrued compensation and other employee benefits	12,604	17,494
Customer deposits	1,741	1,757
Deferred revenue, current portion	11,646	9,588
Operating lease liabilities, current portion	5,333	5,518
Total current liabilities	57,991	58,860
Deferred revenue, net of current portion	4,600	3,754
Long-term debt, net	227,001	226,622
Operating lease liabilities, net of current portion	17,203	18,362
Total liabilities	306,795	307,598
Commitment and contingencies (Note 10)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 15,000 shares authorized; none issued	0	0
Common stock, $0.0001 par value, 150,000 shares authorized; 47,328 and 46,719 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	5	5
Additional paid-in capital	864,204	855,694
Accumulated other comprehensive loss	(55)	(589)
Accumulated deficit	(850,534)	(809,296)
Total stockholders’ equity	13,620	45,814
Total liabilities and stockholders’ equity	$ 320,415	$ 353,412