Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt [Abstract]

Schedule of Debt [Table Text Block]

		December 31,
		2012		2011
Industrial development authority monthly 5.60% fixed rate demand bond maturing 2018	$	5,000	$	5,000
Industrial development authority monthly 5.26% fixed rate demand bond maturing 2028		10,000		10,000
Credit facilities (1.96% weighted average borrowing rate at December 31, 2012)		12,200		28,500
Ohio Department of Development term loan (see below)		2,754		3,076
Other debt obligations (including capital leases)		1,514		761
		31,468		47,337
Short-term debt		(867)		0
Current portion of long-term debt		(601)		(636)
	$	30,000	$	46,701

Schedule of Maturities of Long-term Debt [Table Text Block]

2013	$	1,468
2014		12,667
2015		425
2016		398
2017		395
2018 and beyond	$	16,115