Subsequent Events (Details) (USD $)	3 Months Ended
	Jan. 31, 2013	Oct. 31, 2012	Oct. 31, 2011	Dec. 21, 2012 Versa Acquisition [Member]	Jan. 31, 2013 Connecticut Clean Energy Fund [Member]	Oct. 31, 2012 Connecticut Clean Energy Fund [Member]	Oct. 31, 2011 Connecticut Clean Energy Fund [Member]
Subsequent Event [Line Items]
Noncontrolling Interest, Ownership Percentage by Controlling Owners		61.00%
Common Stock, Shares, Issued		185,856,123	138,400,497	3,500,000
Product and Service Backlog, Increase	$ 125,000,000
Product Backlog, Increase	56,000,000
Service Backlog, Increase	69,000,000
Debt Instrument, Interest Rate, Stated Percentage					5.00%	8.75%
Line of Credit Facility, Amount Outstanding		4,000,000	4,000,000			847,000	775,000
Notes Payable					$ 5,800,000