Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating activities:
Net income (loss)	$ 8,319	$ (859)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	191	244
Stock-based compensation expense	2,224	2,594
Amortization of acquired intangible assets	363	414
Deferred taxes	(6)	(174)
Losses on disposal of assets	6
Purchases of treasury stock in connection with tax withholdings on restricted stock grants	(181)	(341)
Provision for doubtful accounts	37
Impairment of investments	216
Changes in operating assets and liabilities:
Accounts receivable	(5,609)	1,266
Prepaid expenses and other assets	(448)	(270)
Accounts payable	62	315
Accrued compensation and related benefits	2,134	704
Accrued and other liabilities	(342)	(18)
Deferred revenues	(322)	(143)
Billings in excess of recognized revenues	(1,188)	208
Net cash provided by operating activities	5,456	3,940
Investing activities:
Purchases of property and equipment	(639)	(238)
Net cash used in investing activities	(639)	(238)
Financing activities:
Proceeds from exercise of stock options	894	421
Proceeds from employee stock purchase plan	468	428
Purchases of treasury stock	(1,982)	(1,028)
Principal payments on debt obligations		(56)
Net cash used in financing activities	(620)	(235)
Effect of exchange rate changes on cash and cash equivalents	(62)	91
Net change in cash and cash equivalents	4,135	3,558
Cash and cash equivalents, beginning of period	46,041	38,154
Cash and cash equivalents, end of period	50,176	41,712
Cash paid during the period for:
Income taxes	1,105	925
Interest		$ 2