CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating Activities
Net income (loss)	$ 2,347	$ (1,653)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	5,733	6,304
Impairment losses	53	0
Provision for doubtful accounts	14	375
Share-based compensation expense	530	825
Deferred income taxes	121	51
Income tax benefit related to other comprehensive income	(286)	(166)
Changes in operating assets and liabilities:
Trade accounts receivable	3,488	5,045
Prepaid expenses and other assets	(756)	1,167
Accounts payable	116	(1,337)
Accrued and other liabilities	(176)	(1,027)
Net cash provided by operating activities	11,184	9,584
Investing Activities
Proceeds from sale of assets	342	13
Purchases of property, plant and equipment	(2,054)	(594)
Cash paid for acquisition of businesses	0	(414)
Net cash used in investing activities	(1,712)	(995)
Financing Activities
Proceeds from the issuance of common stock	112	114
Proceeds from line of credit	161,203	148,200
Principal payments on line of credit	(168,352)	(156,954)
Principal payments on other debt	(1,587)	(1,409)
Net cash used in financing activities	(8,624)	(10,049)
Effect of exchange rate changes on cash	2	88
Net increase (decrease) in cash and cash equivalents	850	(1,372)
Cash and cash equivalents at beginning of period	1,039	2,626
Cash and cash equivalents at end of period	$ 1,889	$ 1,254