CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities
Net loss	$ (15,949)	$ (3,867)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	9,803	7,629
Gains on disposal of assets	(509)	(182)
Gain on dissolution of subsidiary		(413)
Share-based compensation expense	1,376	1,207
Amortization of deferred gain on sale leaseback transaction	(168)	(214)
Deferred income taxes	132	955
Changes in operating assets and liabilities:
Trade accounts receivable	3,778	(2,328)
Prepaid expenses and other assets	(1,245)	1,873
Accounts payable	(5,076)	(982)
Accrued and other liabilities	4,488	(723)
Net cash (used in) provided by operating activities	(3,370)	2,955
Investing Activities
Proceeds from note receivable	0	481
Proceeds from sale of assets	982	1,064
Purchases of property, plant and equipment	(6,500)	(9,562)
Cash paid for acquisition of business	(18,326)
Cash paid for prior period acquisitions of businesses	(583)	(603)
Net cash used in investing activities	(24,427)	(8,620)
Financing Activities
Proceeds from stock option exercises	552	39
Proceeds from the issuance of common stock	146	89
Proceeds from line of credit	237,840	111,172
Principal payments on line of credit	(214,096)	(109,672)
Principal payments on long-term debt	(276)	(94)
Principal payments on capital lease obligations	(1,203)	(92)
Net cash provided by financing activities	22,963	1,442
Effect of exchange rate changes on cash	342	(214)
Net decrease in cash and cash equivalents	(4,492)	(4,437)
Cash and cash equivalents at beginning of period	5,306	10,989
Cash and cash equivalents at end of period	814	6,552
Supplemental Disclosure of Noncash Investing Activities
Working capital receivable	834	0
Assets acquired through capital lease	4,840	0
Assets acquired through leasehold incentives	$ 2,600	$ 0