Financing Arrangements (Narrative) (Details)				12 Months Ended					12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2013 U.S. Line Of Credit USD ($)	Dec. 31, 2013 Euro Line Of Credit USD ($)	Dec. 31, 2013 Euro Line Of Credit EUR (€)	Dec. 31, 2013 Euro Line Of Credit Germany USD ($)	Dec. 31, 2013 Euro Line Of Credit Russia USD ($)	Dec. 31, 2013 Euro Line Of Credit Italy USD ($)	Dec. 31, 2013 Euro Overdraft Facilities USD ($)	Dec. 31, 2013 Euro Overdraft Facilities EUR (€)	Dec. 31, 2013 European overdraft facilities USD ($)	Dec. 31, 2013 European overdraft facilities EUR (€)	Dec. 31, 2013 U.S. long-term note USD ($)	Dec. 31, 2013 Minimum U.S. Line Of Credit	Dec. 31, 2013 Minimum U.S. long-term note	Dec. 31, 2013 Maximum U.S. Line Of Credit	Dec. 31, 2013 Maximum U.S. long-term note	Dec. 31, 2013 Foreign Subsidiaries U.S. Line Of Credit USD ($)	Dec. 31, 2013 Interest rate swap U.S. long-term note	Dec. 31, 2013 Extended Term U.S. long-term note
Line of Credit Facility [Line Items]
Aggregate available principal under credit facility			$ 35,000,000	$ 27,533,000	€ 20,000,000	$ 17,896,000	$ 4,130,000	$ 5,507,000	$ 1,170,000	€ 850,000	$ 1,377,000	€ 1,000,000
Percentage over LIBOR														1.125%	0.90%	1.625%	1.30%
Total drawings under credit facility	3,296,000	2,442,000																14,100,000
Aggregate remaining availability			35,000,000	25,275,000							339,000
Interest rate on credit facility				1.70%	1.70%				6.50%	6.50%	1.20%	1.20%
Monthly principal payments													$ 111,000
Convertible interest rate percentage																			5.00%	2.57%
Debt service coverage ratio													1.5