Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 50,176	$ 46,041
Short-term investments	784
Accounts receivable, net of allowance of $291 and $254, respectively	26,976	20,863
Prepaid expenses and other current assets	2,800	3,717
Total current assets	80,736	70,621
Non-current investments		784
Property and equipment, net	2,420	777
Intangible assets, net	177	539
Other non-current assets	1,414	1,663
Total assets	84,747	74,384
Current liabilities:
Accounts payable	1,546	974
Accrued compensation and related benefits	7,107	5,026
Accrued and other current liabilities	2,587	2,335
Deferred revenues	2,646	2,961
Billings in excess of recognized revenues	901	2,089
Total current liabilities	14,787	13,385
Long-term income taxes payable	3,111	3,489
Other non-current liabilities	315	667
Total liabilities	18,213	17,541
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.00015 par value, 5,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.00015 par value, 70,000 shares authorized: shares issued 33,012 and 32,635, respectively; shares outstanding 28,434 and 28,304, respectively	4	4
Additional paid-in-capital	212,412	208,826
Treasury stock at cost, 4,578 and 4,331 shares, respectively	(25,062)	(22,899)
Accumulated deficit	(120,470)	(128,789)
Accumulated other comprehensive income (loss)	(350)	(299)
Total stockholders’ equity	66,534	56,843
Total liabilities and stockholders’ equity	$ 84,747	$ 74,384