Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Income from continuing operations	$ 10,497	$ 12,208
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Deferred income taxes	(419)	(444)
Depreciation and amortization	5,988	4,741
Equity in income of nonconsolidated investment	(346)	(596)
Loss on sales and disposals of property, plant, and equipment	12	49
Share-based compensation	1,799	1,091
Excess tax benefit from share-based compensation	(283)	(133)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	4,184	(19,700)
Inventories	(7,595)	7,994
Other current assets	(1,799)	(840)
Prepaid income tax	3,035	(2,711)
Other noncurrent assets	107	148
Dividends from LB Pipe & Coupling Products, LLC	540	468
Accounts payable	13,091	2,214
Deferred revenue	2,560	2,483
Accrued payroll and employee benefits	(1,857)	(2,766)
Other current liabilities	2,005	(4,274)
Other liabilities	60	(454)
Net cash provided (used) by continuing operating activities	31,579	(522)
Net cash provided by discontinued operations	109	229
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from the sale of property, plant, and equipment	184
Capital expenditures on property, plant and equipment	(7,682)	(3,126)
Acquisition of business	(495)
Net cash used by continuing investing activities	(7,993)	(3,126)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of other long-term debt	(54)	(24)
Proceeds from other long-term debt	316
Proceeds from exercise of stock options and stock awards	131
Treasury stock acquisitions	(918)	(610)
Cash dividends on common stock paid to shareholders	(620)	(620)
Excess income tax benefit from share-based compensation	283	133
Net cash used by continuing financing activities	(862)	(1,121)
Effect of exchange rate changes on cash and cash equivalents	99	(2,246)
Net increase (decrease) in cash and cash equivalents	22,932	(6,786)
Cash and cash equivalents at beginning of period	64,623	101,464
Cash and cash equivalents at end of period	87,555	94,678
Supplemental Disclosure of Cash Flow Information:
Interest paid	177	175
Income taxes paid	$ 2,954	$ 8,558