Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Taxes [Abstract]

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		2014		2013
Deferred tax liabilities:
Goodwill and other intangibles	$	(10,800)	$	(11,360)
Depreciation		(3,763)		(3,369)
Inventories		(3,188)		(3,611)
Investment in LB Pipe joint venture		(553)		(587)
Other		(527)		(437)
Total deferred tax liabilities		(18,831)		(19,364)
Deferred tax assets:
Pension and post-retirement liability		2,147		1,033
Warranty reserve		4,180		2,689
Deferred compensation		1,755		1,525
Accounts receivable		369		388
Contingent liabilities		667		662
Long-term insurance reserves		660		569
Net operating loss / tax credit carryforwards		883		139
Other		645		843
Total deferred tax assets		11,306		7,848
Net deferred tax liability	$	(7,525)	$	(11,516)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

		2014		2013		2012
Current:
Federal	$	11,486	$	8,776	$	9,742
State		1,491		837		1,977
Foreign		3,339		1,982		1,910
Total current		16,316		11,595		13,629
Deferred:
Federal		(2,321)		3,200		(3,966)
State		(122)		273		(155)
Foreign		(471)		(229)		(442)
Total deferred		(2,914)		3,244		(4,563)
Total income tax expense from continuing operations	$	13,402	$	14,839	$	9,066

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

		2014		2013		2012
Domestic	$	30,762	$	37,283	$	16,600
Foreign		8,294		6,832		7,230
Income from continuing operations, before income taxes	$	39,056	$	44,115	$	23,830

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2014		2013		2012
Statutory rate	35.0	%	35.0	%	35.0	%
Foreign tax rate differential	(2.2)		(1.7)		(3.0)
State income taxes, net of federal benefit	2.7		2.6		4.5
Non-deductible expenses	1.8		0.6		1.4
Tax credits	(0.9)		(0.8)		(2.2)
Change in liability for unrecognized tax benefits	(0.8)		(1.9)		0.9
Domestic production activities deduction	(2.2)		(1.2)		(1.2)
Other	0.9		1.0		2.6
	34.3	%	33.6	%	38.0	%

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

		2014		2013
Unrecognized tax benefits at beginning of period:	$	1,509	$	2,045
Increases based on tax positions for prior periods		18		149
Decreases based on tax positions for prior periods		(325)		(89)
Decreases related to settlements with taxing authorities		(126)		(596)
Decreases as a result of a lapse of the applicable statute of limitations		(63)		-
Balance at end of period	$	1,013	$	1,509