Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income	$ 11,365	$ 8,432
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,606	3,790
Deferred income taxes	(413)	1,139
Non-cash share-based compensation expense	179	538
Tax benefit from exercise of stock options	373	55
Loss on disposal of property and equipment	2	(1)
Net changes in assets and liabilities:
Trade accounts receivable	(2,884)	(3,208)
Unbilled revenue	33	129
Prepaid expenses and other	(693)	147
Accounts payable	(297)	518
Accrued expenses, wages, bonuses and profit sharing	1,427	1,149
Income taxes receivable and payable	(235)	906
Deferred revenue	1,131	769
Net cash provided by operating activities	13,594	14,363
Cash flows from investing activities:
Purchases of property and equipment	(1,890)	(2,276)
Earn out payments related to business acquisitions		(4,114)
Net cash used in investing activities	(1,890)	(6,390)
Cash flows from financing activities:
Proceeds from notes payable		4,545
Payments on notes payable	(1,410)	(5,910)
Payments on capital lease obligations	(89)	(104)
Proceeds from exercise of stock options	1,058	567
Common stock withheld from vested restricted shares for payroll tax withholdings	(527)	(146)
Excess tax benefit from share-based compensation	1,353	354
Payment of dividends on common stock	(5,299)	(4,435)
Net cash used in financing activities	(4,914)	(5,129)
Effect of exchange rate changes on cash	154	(140)
Increase in cash and cash equivalents	6,944	2,704
Cash and cash equivalents at beginning of period	8,082	3,519
Cash and cash equivalents at end of period	15,026	6,223
Supplemental disclosure of cash paid for:
Interest expense	394	449
Income taxes	$ 3,897	$ 2,375