Consolidated Statements of Cash Flows (unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating activities:
Net loss	$ (3,592,000)	$ (4,323,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Gain on interest rate swap	(48,000)	(54,000)
Depreciation and amortization	16,326,000	14,025,000
Amortization of deferred rent	(19,000)	(143,000)
Share-based compensation	4,131,000	4,696,000
Excess tax benefit related to share-based compensation	(407,000)
Provision for doubtful accounts	920,000	1,095,000
Amortization of deferred financing costs	580,000	514,000
Deferred income taxes	(6,037,000)	(3,937,000)
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(11,725,000)	(4,910,000)
Prepaid expenses and other current assets	(198,000)	(357,000)
Accounts payable and accrued expenses	4,643,000	3,469,000
Accrued interest expense	(5,990,000)	(5,428,000)
Deferred revenue and customer deposits	666,000	539,000
Other liabilities	(360,000)	(387,000)
Net cash provided by (used in) operating activities	(1,110,000)	4,799,000
Investing activities:
Purchases of equipment and leasehold improvements, net	(1,770,000)	(552,000)
Working capital and other settlements for acquisitions		908,000
Net cash provided by (used in) investing activities	(1,770,000)	356,000
Financing activities:
Borrowings under senior secured revolving credit facility	10,000,000	11,000,000
Proceeds from the exercise of options and warrants	2,441,000	50,000
Excess tax benefit related to share-based compensation	407,000
Purchases of stock for treasury		(387,000)
Repayment of subordinated unsecured notes payable		(546,000)
Payment of deferred financing costs	(52,000)	(414,000)
Net repayments under working capital facilities	(800,000)	(3,789,000)
Repayment under senior secured revolving credit facility	(10,000,000)	(11,000,000)
Other		(95,000)
Net cash provided by (used in) financing activities	1,996,000	(5,181,000)
Exchange rate impact on cash and cash equivalents	(34,000)	76,000
Net increase (decrease) in cash and cash equivalents	(918,000)	50,000
Cash and cash equivalents, beginning of period	8,627,000	8,416,000
Cash and cash equivalents, end of period	7,709,000	8,466,000
Supplemental disclosures of cash flow information:
Cash paid for interest	12,796,000	11,570,000
Cash paid for income taxes	$ 3,404,000	$ 1,228,000