Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 7,385,000	$ 3,047,000
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(395,000)	126,000
Depreciation and amortization	1,428,000	908,000
Share-based compensation	575,000	1,085,000
Tax benefit for share-based payments	(119,000)	32,000
Changes in assets and liabilities:
Accounts receivable, net	(1,043,000)	(117,000)
Prepaid income taxes, excluding tax benefit for share-based payments	119,000	(317,000)
Prepaid expenses and other current assets	(621,000)	(244,000)
Other assets	54,000	73,000
Accounts payable	19,000	(826,000)
Accrued and other liabilities	(793,000)	(252,000)
Total adjustments	(776,000)	468,000
Net cash provided by operating activities	6,609,000	3,515,000
Cash flows from investing activities:
Capital expenditures	(854,000)	(1,112,000)
Capitalized software development costs	(1,899,000)	(1,635,000)
Purchase of investments	(12,435,000)	(20,587,000)
Sale and maturity of investments	14,610,000	5,655,000
Purchase of business, net of cash acquired	(8,781,000)	0
Net cash provided by (used in) investing activities	(9,359,000)	(17,679,000)
Cash flows from financing activities:
Proceeds from stock options and other issuances of stock	605,000	43,000
Revision of estimate for capitalized expenses of stock offering	0	56,000
Tax benefit for share-based payments	119,000	(32,000)
Repayment of promissory notes payable	(67,000)	(832,000)
Net cash provided by (used in) financing activities	657,000	(765,000)
Net change in cash and cash equivalents	(2,093,000)	(14,929,000)
Cash and cash equivalents at beginning of period	6,207,000	25,732,000
Cash and cash equivalents at end of period	4,114,000	10,803,000
Supplemental cash flow information:
Cash paid for interest	1,000	19,000
Cash paid for income taxes	$ 5,625,000	$ 2,245,000