Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities
Net income (loss)	$ 2,610	$ (2,140)	$ 9,927
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Impairment charges	0	5,766	6,239
Depreciation and amortization	8,509	9,847	9,560
Debt issuance costs amortization	38	42	83
Deferred income taxes	(768)	446	(390)
Gain on sale of assets	(26)	(82)	(62)
Gain on sale of business	0	(218)	(4,890)
Gain on purchase of business	0	(462)	0
Unrealized foreign currency transaction loss	404	350	(2,397)
Changes in operating assets and liabilities, net of businesses acquired:
Accounts receivable	3,942	(7,860)	(68)
Restricted cash	827	973	1,490
Inventories	(1,442)	(1,303)	20,259
Other assets	1,245	682	173
Accounts payable	450	2,211	(4,083)
Customer deposits	7,762	(1,783)	(899)
Accrued expenses	3,250	(3,281)	(9,123)
Accrued pension and postretirement liabilities	(74)	(9)	9
Net cash provided by operating activities	26,727	3,179	25,828
Investing activities
Acquisition of businesses, net of cash acquired	0	(5,683)	(34,250)
Capital expenditures	(4,210)	(3,186)	(3,871)
Proceeds from disposal of business	0	218	6,255
Proceeds from sales of assets	69	151	179
Net cash used in investing activities	(4,141)	(8,500)	(31,687)
Financing activities
Payment of contingent consideration	0	(7,500)	(299)
Proceeds from short-term notes payable to bank	32,502	21,143	47,733
Repayments of short-term notes payable to bank	(32,502)	(21,143)	(59,025)
Proceeds from long-term debt	0	0	33,821
Repayments of long-term debt	(4,464)	(9,296)	(15,743)
Debt issuance costs	0	0	(687)
Dividends paid	(1,037)	(1,012)	(944)
Net proceeds from sales of common stock	0	5,678	8,884
Purchases of treasury stock	(201)	0	0
Net cash (used in) provided by financing activities	(5,702)	(12,130)	13,740
Effect of exchange rate changes on cash	(403)	(978)	(14)
Net increase (decrease) in cash	16,481	(18,429)	7,867
Cash and cash equivalents at beginning of period	16,293	34,722	26,855
Cash and cash equivalents at end of period	$ 32,774	$ 16,293	$ 34,722