Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating activities
Net income	$ 2,305	$ 6,083
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	4,350	3,658
Debt issuance amortization	34	32
(Benefit) provision for deferred income taxes	(20)	1,001
Gain on sale of assets	(11)	(14)
Unrealized intercompany foreign currency transaction loss	67	290
Changes in operating assets and liabilities:
Accounts receivable	1,263	11,685
Inventories	311	(10,586)
Other assets	(49)	(540)
Accounts payable	(1,174)	(2,906)
Customer deposits	3,901	(2,399)
Accrued expenses	(8,771)	(5,732)
Accrued postretirement benefits	(197)	(258)
Net cash provided by operating activities	2,009	314
Investing activities
Acquisition of business, net of cash acquired	(34,250)
Capital expenditures	(1,627)	(5,364)
Proceeds on sale of assets	102	22
Net cash used in investing activities	(35,775)	(5,342)
Financing activities
Proceeds from short-term notes payable to bank	32,458	35,584
Repayments of short-term notes payable to bank	(26,674)	(35,726)
Proceeds from long-term debt	23,000	475
Repayments of long-term debt	(1,432)	(465)
Dividends paid	(467)	(465)
Other financing activities	(667)	9
Net cash provided by (used in) financing activities	26,218	(588)
Effect of exchange rate changes on cash	(591)	29
Net decrease in cash	(8,139)	(5,587)
Cash and cash equivalents at beginning of period	26,855	21,736
Cash and cash equivalents at end of period	$ 18,716	$ 16,149