CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 53,492	$ 20,717
Short-term investments	113,261	76,573
Accounts receivable, net of allowance for credit losses of $750 and $400, respectively	19,988	20,674
Inventory	22,335	17,282
Prepaid expenses and other current assets	1,943	2,365
Total current assets	211,019	137,611
Property and equipment, net	16,487	15,564
Operating lease right-of-use assets	3,034	4,002
Other non-current assets	338	375
TOTAL ASSETS	230,878	157,552
Current liabilities:
Accounts payable	4,420	6,279
Accrued liabilities and other	13,549	13,511
Operating lease liabilities, current portion	1,403	1,388
Total current liabilities	19,372	21,178
Long-term borrowings	36,022	35,171
Operating lease liabilities, net of current portion	1,865	2,871
Other long-term liabilities	19	30
TOTAL LIABILITIES	57,278	59,250
Commitments and contingencies (Note 6)
STOCKHOLDERS’ EQUITY
Preferred stock, $0.0001 par value; 5,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.0001 par value; 100,000,000 shares authorized; 40,377,691 and 34,731,577 shares issued and outstanding, respectively	4	3
Additional paid-in capital	562,698	455,172
Accumulated other comprehensive income	356	232
Accumulated deficit	(389,458)	(357,105)
TOTAL STOCKHOLDERS’ EQUITY	173,600	98,302
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 230,878	$ 157,552