Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 1,015	$ 535	$ 10,906
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock compensation	3,024	2,829	1,920
Depreciation/Amortization	25,780	15,492	7,200
Loss on disposal of equipment	87	0	10
Non-cash interest expense	0	0	585
Non-cash impact of TAGG earn-out reduction	0	0	(21,950)
Windfall tax benefit from option exercise	(140)	(144)	0
Deferred taxes	(1,864)	(2,036)	7,668
Changes in balance sheet items:
Receivables	(8,546)	(1,784)	(7,294)
Inventory	(1,313)	(1,903)	(848)
Prepaid expenses	910	1,288	(911)
Income tax receivable	(69)	251	0
Accounts payable	(298)	(2,694)	(419)
Accrued expenses	(2,429)	(1,554)	1,708
Other balance sheet changes	(2,128)	23	(213)
Net cash provided by (used in) operating activities	14,029	10,303	(1,638)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(131,392)	(58,573)	(92,008)
Purchase of property and equipment	(10,721)	(3,508)	(1,909)
Proceeds from sale of equipment	0	0	128
Net cash used in investing activities	(142,113)	(62,081)	(93,789)
Cash flows from financing activities:
Proceeds from stock issuances	94,451	0	88,823
Proceeds from term note	70,000	0	5,000
Proceeds from revolver	51,500	79,500	19,600
Proceeds from subordinated debt	0	0	8,250
Repayment of debt	(81,312)	(30,000)	(32,850)
Repurchase of stock	(2,948)	(3,079)	0
Windfall tax benefit from option exercise	140	144	0
Proceeds from option and warrant exercises	598	712	5,066
Net cash provided by financing activities	132,429	47,277	93,889
Net increase (decrease) in cash and cash equivalents	4,345	(4,501)	(1,538)
Cash and cash equivalents at beginning of period	1,294	5,795	7,333
Cash and cash equivalents at end of period	5,639	1,294	5,795
Supplemental disclosure of cash flow information:
Cash paid for interest	2,059	680	1,076
Cash paid for taxes	5,797	228	0
Equity issued for acquisitions	24,089	4,407	6,057
Non-cash fixed asset additions	$ 7,950	$ 0	$ 0