CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 65,216	$ 68,330
Short-term investments	45,724	35,068
Accounts receivable (net of allowance for doubtful accounts of $115 and $40, respectively)	34,296	37,437
Inventory	16,729	13,381
Other current assets	4,410	4,246
Total current assets	166,375	158,462
Property and equipment, net	15,918	13,308
Restricted cash	0	211
Right-of-use assets	42,628	45,720
Long-term investments	21,739	25,687
Other long-term assets	1,357	317
Total assets	248,017	243,705
Current liabilities:
Accounts payable	8,113	9,016
Accrued expenses	13,948	14,045
Current portion of operating lease liabilities	4,902	2,950
Other current liabilities	41	41
Total current liabilities	27,004	26,052
Operating lease liabilities	43,176	47,147
Other long-term liabilities	0	44
Total liabilities	70,180	73,243
COMMITMENTS AND CONTINGENCIES
Shareholders’ equity:
Common stock, no par value; shares authorized — 75,000; shares issued and outstanding 47,201 and 46,880, respectively	584,900	553,902
Accumulated other comprehensive loss	(1,146)	(154)
Accumulated deficit	(405,917)	(383,286)
Total shareholders’ equity	177,837	170,462
Total liabilities and shareholders’ equity	$ 248,017	$ 243,705