CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 93,728	$ 27,684
Short-term investments	22,357	112,542
Accounts receivable, net of allowance for doubtful accounts of $890 as of September 30, 2022 and December 31, 2021	54,981	40,087
Prepaid expenses and other current assets	9,463	8,194
Total current assets	180,529	188,507
Property and equipment, net	38,740	35,295
Operating lease right-of-use assets, net	6,022	5,408
Goodwill	14,123	14,123
Intangible assets, net	18,934	21,239
Deferred tax assets, net	16	75
Other non-current assets	7,611	9,121
Total assets	265,975	273,768
Current liabilities:
Accounts payable	5,186	5,554
Accrued compensation and related benefits	12,652	9,495
Accrued and other current liabilities	6,472	3,328
Operating lease liabilities - current portion	1,448	1,758
Deferred revenues - current portion	26,461	23,691
Billings in excess of recognized revenues	183
Total current liabilities	52,402	43,826
Long-term income taxes payable	2,348	2,656
Non-current operating lease liabilities	6,074	5,258
Non-current portion of deferred revenue	1,948	2,443
Total liabilities	62,772	54,183
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, $0.00015 par value, 5,000 shares authorized, no shares issued and outstanding
Common stock, $0.00015 par value, 70,000 shares authorized; shares issued 48,448 and 47,414, respectively; shares outstanding 37,295 and 37,411, respectively	6	6
Additional paid-in-capital	441,705	423,069
Treasury stock at cost, 11,153 and 10,003 shares, respectively	(132,966)	(104,705)
Accumulated deficit	(101,633)	(97,721)
Accumulated other comprehensive loss	(3,909)	(1,064)
Total stockholders' equity	203,203	219,585
Total liabilities and stockholders' equity	$ 265,975	$ 273,768