Other Current Assets (Details) (USD $)	Jul. 31, 2014		Oct. 31, 2013
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 4,000,000
Advance payments to vendors	3,056,000	[1]	4,235,000	[1]
Debt issuance costs	0	[2]	494,000	[2]
Notes receivable	529,000	[3]	478,000	[3]
Prepaid expenses and other	4,852,000	[4]	6,072,000	[4]
Total	8,565,000		11,279,000
NRG Energy, Inc. [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	40,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Debt issuance costs	$ 128,000	[5]	$ 0	[5]

[1] Advance payments to vendors relate to inventory purchases.

[2] Represents the current portion of capitalized debt issuance costs relating to the convertible debt issuance. The convertible notes have been converted and the debt issuance costs have been adjusted to additional paid in capital.

[3] Current portion of long-term notes receivable.

[4] Primarily relates to other prepaid vendor expenses including insurance, rent and lease payments.

[5] Represents the current portion of direct deferred finance costs relating to securing a $40.0 million loan facility and will be amortized over the five-year life of the facility.