Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income	$ 11,564	$ 8,499	$ 8,491
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,065	4,704	3,831
Deferred income taxes	1,297	614	1,733
(Gain) Loss on sale of property and equipment	(1)	1	1
Tax benefit from exercise of stock options	66	33
Non-cash stock compensation expense	763	779	619
Change in assets and liabilities, net of effect of acquisitions:
Trade accounts receivable	(2,064)	(2,489)	1,396
Unbilled revenue	194	91	(315)
Prepaid expenses and other	132	1,854	(516)
Accounts payable	52	(1,391)	(278)
Accrued expenses, wages, bonus and profit sharing	1,176	113	(73)
Income taxes payable and recoverable	1,420	(442)	(326)
Deferred revenue	(1,183)	2,237	(897)
Net cash provided by operating activities	18,481	14,603	13,666
Cash flows from investing activities:
Purchases of property and equipment	(2,812)	(1,539)	(2,909)
Acquisitions, net of cash acquired and earn-out on acquisitions	(4,115)	(15,441)	(93)
Net cash used in investing activities	(6,927)	(16,980)	(3,002)
Cash flows from financing activities:
Proceeds from notes payable	4,545	11,300	4,916
Payments on notes payable	(6,218)	(2,799)	(10,108)
Payments on capital lease obligations	(130)	(43)	(44)
Proceeds from exercise of stock options	568	274	18
Excess tax benefit from share-based compensation	407	46	17
Purchase of treasury stock		(399)	(84)
Repurchase of shares for payroll tax withholdings related to share-based compensation	(146)	(64)
Payment of dividends on common stock	(5,912)	(5,061)	(4,263)
Net cash (used in) provided by financing activities	(6,886)	3,254	(9,548)
Effect of exchange rate changes on cash	(105)	130	287
Net increase in cash and cash equivalents	4,563	1,007	1,403
Cash and cash equivalents at beginning of period	3,519	2,512	1,109
Cash and cash equivalents at end of period	8,082	3,519	2,512
Supplemental disclosure of cash paid for:
Interest expense, net of capitalized amounts	542	497	498
Income taxes	$ 3,383	$ 4,549	$ 2,999