Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 9,551	$ 10,862
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,125	2,366
Stock compensation expense	619	919
Deferred income taxes	147	490
Changes in operating assets and liabilities:
Accounts receivable, net	19,363	20,986
Prepaid expenses and other assets	(342)	(1,991)
Accounts payable	(15,182)	(11,921)
Accrued expenses	(3,847)	(2,459)
Deferred rent	(237)	(261)
Net cash provided by operating activities	13,197	18,991
Cash flows from investing activities:
Purchase of property and equipment	(1,281)	(4,027)
Cash paid for acquisition, net of cash acquired	(64,308)
Net cash used in investing activities	(65,589)	(4,027)
Cash flows from financing activities:
Borrowings under credit facility	123,986	59,163
Repayments of credit facility	(73,986)	(77,163)
Principal payments under capital lease obligations	(23)	(37)
Proceeds from exercise of stock options	185	2,441
Excess tax deduction from exercise of stock options		166
Net cash provided by (used in) financing activities	50,162	(15,430)
Net change in cash and cash equivalents	(2,230)	(466)
Cash and cash equivalents, beginning of period	2,791	1,193
Cash and cash equivalents, end of period	561	727
Cash paid during the period for:
Interest	752	325
Income taxes	$ 6,666	$ 8,226