Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 7,544,000	$ 9,505,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,039,000	1,861,000
Deferred income taxes	(511,000)	11,000
Non-cash share-based compensation expense	553,000	130,000
Tax benefit from exercise of stock options	$ 14,000	73,000
Loss on disposal of property and equipment		$ 1,000
Reserve for uncertain tax positions	$ 39,000
Write off of purchase option	657,000
Net changes in assets and liabilities:
Trade accounts receivable	(2,267,000)	$ (400,000)
Unbilled revenue	(339,000)	(438,000)
Prepaid expenses and other	(596,000)	(362,000)
Accounts payable	506,000	301,000
Accrued expenses, wages, bonuses and profit sharing	(491,000)	(1,162,000)
Income taxes receivable and payable	221,000	(239,000)
Deferred revenue	1,864,000	2,093,000
Net cash provided by operating activities	9,233,000	11,374,000
Cash flows from investing activities:
Purchases of property and equipment	(1,632,000)	(1,425,000)
Net cash used in investing activities	(1,632,000)	(1,425,000)
Cash flows from financing activities:
Payments on notes payable	(1,156,000)	(1,120,000)
Payments on capital lease obligations	$ (98,000)	(59,000)
Proceeds from exercise of stock options		408,000
Common stock withheld from vested restricted shares for payroll tax withholdings	$ (92,000)	(309,000)
Excess tax benefit from share-based compensation	100,000	531,000
Purchase of treasury stock	(271,000)
Payment of dividends on common stock	(5,029,000)
Net cash used in financing activities	(6,546,000)	(549,000)
Effect of exchange rate changes on cash	(542,000)	47,000
Increase in cash and cash equivalents	513,000	9,447,000
Cash and cash equivalents at beginning of period	40,042,000	22,092,000
Cash and cash equivalents at end of period	40,555,000	31,539,000
Supplemental disclosure of cash paid for:
Interest, net of capitalized amounts	113,000	149,000
Income taxes	4,762,000	4,842,000
Supplemental disclosure of non-cash investing and financing activities:
Assets purchased under capital lease	$ 20,000	$ 248,000