CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 61,834	$ 51,067
Short-term investments	57,442	68,471
Accounts receivable (net of allowance for doubtful accounts of $47 and $47, respectively)	38,359	46,539
Inventory	15,370	15,986
Other current assets	4,540	4,803
Total current assets	177,545	186,866
Property and equipment, net	18,197	15,837
Intangible assets, net	7,344	7,500
Right-of-use assets	40,851	41,535
Long-term investments	19,910	19,962
Other long-term assets	1,249	1,303
Total assets	265,096	273,003
Current liabilities:
Accounts payable	11,125	16,930
Accrued expenses	13,111	16,190
Current portion of operating lease liabilities	4,497	4,302
Other current liabilities	20	41
Total current liabilities	28,753	37,463
Operating lease liabilities	42,365	43,268
Total liabilities	71,118	80,731
COMMITMENTS AND CONTINGENCIES (Note 12)
Shareholders’ equity:
Common stock, no par value; shares authorized — 75,000; shares issued and outstanding 47,507 and 47,253, respectively	602,104	593,245
Accumulated other comprehensive loss	(636)	(978)
Accumulated deficit	(407,490)	(399,995)
Total shareholders’ equity	193,978	192,272
Total liabilities and shareholders’ equity	$ 265,096	$ 273,003