Financing Arrangements (Details Textual) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 14, 2011 Revolving loan facility [Member]	Apr. 16, 2012 Letter of credit sublimit [Member]
Financing Arrangements (Additional Textual) [Abstract]
Credit Agreement, Available		$ 25,000,000	$ 5,000,000
Credit Agreement, Current capacity	2,667,000	30,000,000	10,000,000
Financing Arrangements (Textual) [Abstract]
Revolving loan facility, maturity date	Jul. 16, 2013
Fixed charge coverage ratio	1.10
Fixed charge coverage ratio, minimum	1.00
Maximum percentage of the outstanding voting equity securities of foreign subsidiary	65.00%
Debt instrument, overadvance limit	$ 1,000,000
Credit Agreement permits consecutive days	60 days