Condensed Consolidated Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Operating activities:
Net income	$ 8,493		$ 7,445
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	3,238		2,998
(Gain) loss on sale and abandonment of assets	(36)		37
Amortization of debt issuance costs	304		319
Non-cash stock-based compensation	1,313		1,237
Excess tax benefit related to stock option exercises	(220)		(968)
Provisions (reversal) for losses on accounts receivable	95		(55)
Deferred income taxes	1,477		1,034
Change in operating assets and liabilities	3,838		(10,044)
Net cash provided by operating activities	18,502		2,003
Investing activities:
Purchase of leasehold improvements and equipment	(1,836)		(1,560)
Cost of contracts purchased	(272)		(121)
Proceeds from sale of assets	79		0
Capitalized interest	(36)		(71)
Contingent purchase payments	(231)		(104)
Net cash used in investing activities	(2,296)		(1,856)
Financing activities:
Proceeds from exercise of stock options	143		1,069
Repurchase of common stock	(431)		0
Tax benefit related to stock option exercises	220		968
Payments on senior credit facility	(11,200)		(1,700)
Distribution to noncontrolling interest	(174)		(85)
Payments on long-term borrowings	(67)		(63)
Payments on capital leases	(264)		(276)
Net cash used in financing activities	(11,773)		(87)
Effect of exchange rate changes on cash and cash equivalents	47		(34)
Increase in cash and cash equivalents	4,480		26
Cash and cash equivalents at beginning of period	7,305	[1]	8,256
Cash and cash equivalents at end of period	11,785		8,282
Cash paid during the period for:
Interest	2,105		2,691
Income taxes	$ 3,692		$ 3,032

[1] The balance sheet at December 31, 2010 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.