Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 42,369	$ 34,885
Short-term investments	54,827	83,547
Accounts receivable, net of allowance of $389 and $331 at December 31, 2013 and 2012, respectively	28,581	24,545
Prepaid expenses and other current assets	4,679	4,377
Total current assets	130,456	147,354
Long-term investments	35,608	0
Property and equipment, net	23,075	18,148
Intangible assets, net	2,394	2,811
Goodwill	317	317
Other noncurrent assets	753	1,688
Total assets	192,603	170,318
Current liabilities:
Accounts payable	1,930	2,031
Accrued liabilities	9,037	7,803
Deferred revenues, current	67,505	56,497
Capital lease obligations, current	805	1,183
Total current liabilities	79,277	67,514
Deferred revenues, noncurrent	8,889	8,616
Income taxes payable, noncurrent	717	594
Other noncurrent liabilities	603	1,231
Capital lease obligations, noncurrent	0	808
Total liabilities	89,486	78,763
Commitments and contingencies (Note 6)
Stockholders' Equity:
Preferred stock: $0.001 par value; 20,000,000 shares authorized, no shares issued and outstanding at December 31, 2013 and 2012	0	0
Common stock, $0.001 par value; 1,000,000,000 shares authorized, 32,375,299 and 31,420,028 shares issued and outstanding at December 31, 2013 and 2012, respectively	32	31
Additional paid-in capital	176,641	166,651
Accumulated other comprehensive loss	(1,088)	(1,035)
Accumulated deficit	(72,468)	(74,092)
Total stockholders’ equity	103,117	91,555
Total liabilities and stockholders’ equity	$ 192,603	$ 170,318