Acquisition (Details Textual) (USD $) In Millions, unless otherwise specified	0 Months Ended
	May 12, 2011	Sep. 30, 2012
Business Acquisition [Line Items]
Entity acquisition liability incurred		$ 2.3
Acquisition (Textual) [Abstract]
Business Acquisition Effective Date	May 12, 2011
Purchase Price		9.0
Cash paid on acquisition date	6.7	1.4
Payment for employee retention and Lease extension		0.9
Goodwill deductible for tax purpose		2.1
Accrued Liabilities [Member]
Business Acquisition [Line Items]
Entity acquisition liability incurred		$ 0.9