Commitments and Contingent Liabilites (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingent Liabilities [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

		In thousands
Balance at December 31, 2010	$	4,403
Additions to warranty liability		4,437
Warranty liability utilized		(2,208)
Balance at December 31, 2011		6,632
Additions to warranty liability		24,252
Warranty liability utilized		(15,157)
Balance at December 31, 2012	$	15,727