Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 27,804	$ 45,739
Accounts receivable, net of allowance of $299 and $353 at June 30, 2022 and December 31, 2021, respectively	32,567	29,866
Prepaid expenses	10,911	7,792
Other current assets	10,351	10,833
Total current assets	81,633	94,230
Property and equipment, net	32,538	20,514
Operating lease right-of-use asset	19,048	24,891
Intangible assets, net	12,088	9,276
Goodwill	74,837	60,902
Other assets	6,465	6,655
Total assets	226,609	216,468
Current liabilities:
Accounts payable	11,956	11,039
Accrued expenses	22,907	20,925
Operating lease liability	2,595	2,600
Deferred revenue	64,567	62,057
Total current liabilities	102,025	96,621
Operating lease liability, net of current portion	20,970	22,801
Other liabilities	877	786
Total liabilities	123,872	120,208
Commitments and contingencies (Note 8)
Stockholders' equity:
Undesignated preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued
Common stock, $0.001 par value; 100,000,000 shares authorized; 42,029,575 and 41,384,643 shares issued at June 30, 2022 and December 31, 2021, respectively	42	41
Additional paid-in capital	308,307	298,793
Treasury stock, at cost; 135,000 shares	(871)	(871)
Accumulated other comprehensive loss	(1,762)	(662)
Accumulated deficit	(202,979)	(201,041)
Total stockholders' equity	102,737	96,260
Total liabilities and stockholders' equity	$ 226,609	$ 216,468