Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 64,396	$ 55,845
Short-term investments	0	73
Accounts and unbilled receivables, net of allowance of $950 and $1,020, respectively	24,839	27,402
Prepaid and other current assets	7,499	6,170
Total current assets	96,734	89,490
Restricted cash	329	293
Property and equipment, net	3,832	3,248
Other long term assets, net	5,345	5,097
Total assets	106,240	98,128
Current liabilities:
Accounts payable	3,198	2,131
Accrued liabilities	1,817	1,998
Accrued payroll and other employee benefits	5,938	4,606
Deferred revenue	28,093	28,429
Total current liabilities	39,046	37,164
Long-term deferred revenue	874	1,461
Total liabilities	39,920	38,625
Commitments and contingencies (Note 4)
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized none issued	0	0
Common stock, $0.001 par value, 75,000,000 shares authorized, 31,301,743 and 30,777,000 shares issued, respectively, 26,884,158 and 26,359,415 shares outstanding, respectively	31	31
Additional paid-in capital	74,364	69,844
Treasury stock, 4,417,585 common shares, at cost	(13,938)	(13,938)
Accumulated other comprehensive loss	(11)	(11)
Retained earnings	5,874	3,577
Total stockholders' equity	66,320	59,503
Total liabilities and stockholders' equity	$ 106,240	$ 98,128