Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 15,484,000	$ 15,068,000	$ 11,564,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,732,000	4,699,000	5,065,000
Deferred income taxes	16,000	(421,000)	1,297,000
(Gain) Loss on sale of property and equipment	23,000	4,000	(1,000)
Tax benefit from exercise of stock options	84,000	601,000	66,000
Non-cash stock compensation expense	955,000	388,000	763,000
Change in assets and liabilities:
Trade accounts receivable	970,000	(879,000)	(2,064,000)
Unbilled revenue	(386,000)	(11,000)	194,000
Prepaid expenses	(166,000)	(357,000)	253,000
Other current assets	76,000	(106,000)	(121,000)
Accounts payable	331,000	(516,000)	52,000
Accrued expenses, wages, bonus and profit sharing	212,000	1,602,000	1,176,000
Income taxes payable and recoverable	(100,000)	(303,000)	1,420,000
Deferred revenue	(1,916,000)	(637,000)	(1,183,000)
Net cash provided by operating activities	19,315,000	19,132,000	18,481,000
Cash flows from investing activities:
Purchases of property and equipment	(2,188,000)	(2,348,000)	(2,812,000)
Earn-out related to acquisitions			(4,115,000)
Net cash used in investing activities	(2,188,000)	(2,348,000)	(6,927,000)
Cash flows from financing activities:
Proceeds from notes payable			4,545,000
Payments on notes payable	(2,112,000)	(2,050,000)	(6,218,000)
Payments on capital lease obligations	(110,000)	(108,000)	(130,000)
Proceeds from exercise of stock options	840,000	1,283,000	568,000
Excess tax benefit from share-based compensation	755,000	2,078,000	407,000
Repurchase of shares for payroll tax withholdings related to share-based compensation	(55,000)	(527,000)	(146,000)
Payment of dividends on common stock	(2,142,000)	(17,363,000)	(5,912,000)
Net cash used in financing activities	(2,824,000)	(16,687,000)	(6,886,000)
Effect of exchange rate changes on cash	(497,000)	107,000	(105,000)
Net increase in cash and cash equivalents	13,806,000	204,000	4,563,000
Cash and cash equivalents at beginning of period	8,286,000	8,082,000	3,519,000
Cash and cash equivalents at end of period	22,092,000	8,286,000	8,082,000
Supplemental disclosure of cash paid for:
Interest expense, net of capitalized amounts	368,000	554,000	542,000
Income taxes	$ 8,181,000	$ 5,108,000	$ 3,383,000