Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill [Line Items]

Schedule of Goodwill [Table Text Block]

The changes in the carrying amounts of goodwill for the years ended December 31, 2011 and 2012 are as follows:

	Hydrostatics Segment			Controls Segment			Total
Balance as of January 1, 2011	$	26,466		$	8,589		$	35,055
Translation Adjustment	(432		)	(149		)	(581		)
Balance as of December 31, 2011	26,034			8,440			34,474
Translation Adjustment	576			205			781
Balance as of December 31, 2012	$	26,610		$	8,645		$	35,255

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table summarizes the components of the other intangible asset balances at December 31, 2012 and 2011:

	Trade Name			Technology			Customer Relationships			Other			Total
December 31, 2012
Cost	$	19,000		$	10,700		$	1,311		$	2,363		$	33,374
Accumulated amortization	(6,515		)	(8,559		)	(850		)	(1,788		)	(17,712		)
Other intangible assets, net	$	12,485		$	2,141		$	461		$	575		$	15,662
December 31, 2011
Cost	$	19,000		$	10,700		$	1,267		$	2,008		$	32,975
Accumulated amortization	(5,972		)	(7,846		)	(644		)	(1,630		)	(16,092		)
Other intangible assets, net	$	13,028		$	2,854		$	623		$	378		$	16,883