Accrued Expenses and Other Current Liabilities (Other Disclosures) (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Customer deposits:
Customer deposits, amounts received, associated with Thailand flood recovery plan	$ 6,800,000
Customer deposits, remaining balance, associated with Thailand flood recovery plan	0	1,300,000
Customer deposit, Suncore JV - related party, amount received		3,300,000
Customer deposit, Suncore JV - related party, remaining balance		600,000
Capital lease obligations:
Acquisition of equipment under capital lease	0	4,411,000	1,879,000
Natural Disasters and Other Casualty Events
Capital lease obligations:
Property, plant and equipment, additions		5,200,000
Acquisition of equipment under capital lease	1,200,000	4,400,000
Executive Chairman
Severance and restructuring accruals:
Continuation of base salary, in weeks		616 days
Continuation of benefits, in months		18 months
Estimated charge related to separation agreement		1,100,000
Chief Operating Officer
Severance and restructuring accruals:
Continuation of base salary, in weeks	616 days
Continuation of benefits, in months	18 months
Estimated charge related to separation agreement	$ 500,000