Long Term Debt and Interest Rate Swaps (Details) (USD $)			3 Months Ended			3 Months Ended		3 Months Ended		3 Months Ended			1 Months Ended	3 Months Ended		1 Months Ended		3 Months Ended		3 Months Ended
	Apr. 30, 2014	Jan. 31, 2014	Apr. 30, 2014 Interest Rate Swap One [Member] One Earth Energy [Member]	Jan. 31, 2014 Interest Rate Swap One [Member] One Earth Energy [Member]	Jul. 31, 2009 Interest Rate Swap One [Member] One Earth Energy [Member]	Apr. 30, 2014 One Earth Energy [Member] Term Loan [Member]	Jan. 31, 2014 One Earth Energy [Member] Term Loan [Member]	Apr. 30, 2014 One Earth Energy [Member] Revolving Credit Facility [Member]	Jan. 31, 2014 One Earth Energy [Member] Revolving Credit Facility [Member]	Apr. 30, 2014 One Earth Energy [Member]	Apr. 30, 2014 One Earth Energy [Member] Minimum [Member] Term Loan [Member]	Apr. 30, 2014 One Earth Energy [Member] Maximum [Member] Term Loan [Member]	Nov. 30, 2011 Nu Gen Energy [Member] Term Loan [Member]	Apr. 30, 2014 Nu Gen Energy [Member] Term Loan [Member]	Jan. 31, 2014 Nu Gen Energy [Member] Term Loan [Member]	Nov. 30, 2011 Nu Gen Energy [Member] Revolving Credit Facility [Member]	Nov. 30, 2011 Nu Gen Energy [Member]	Apr. 30, 2014 Nu Gen Energy [Member]	Jan. 31, 2014 Nu Gen Energy [Member]	Apr. 30, 2014 Nu Gen Energy [Member] Maximum [Member]
Long Term Debt and Interest Rate Swaps (Details) [Line Items]
Debt Instrument Refinanced Amount										$ 44,101,000
Debt Instrument Refinanced Amount Interest Rate										LIBOR plus 300 basis points
Debt Instrument, Interest Rate at Period End											3.20%
Long term debt, quarterly principle payments						2,000,000
Long Term Debt Maturities Quarterly Principal Payment Due Beginning Date										Jan. 08, 2014
Debt Instrument Maximum Payment Aggregate											6,000,000
Long-term Debt, Excess Cash Flow Principle Payments, Maximum												18,000,000
Long-term Debt, Gross						35,000,000	39,100,000
Line of Credit Facility, Maximum Borrowing Capacity								10,000,000
Debt Instrument, Maturity Date								Jul. 31, 2014
Debt Instrument, Description of Variable Rate Basis								LIBOR plus 265 basis points						LIBOR plus 325 basis points
Line of Credit Facility, Amount Outstanding								0	0
Payments of Financing Costs						1,400,000														600,000
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries						92,900,000	86,900,000											63,000,000	66,100,000
Derivative Liability, Notional Amount					50,000,000
Swap Termination Date			July 8, 2014
Debt Instrument, Basis Spread on Variable Rate			7.90%
Derivative Liability	747,000	1,141,000	700,000	1,100,000										33,300,000	36,600,000
Proceeds from Bank Debt													$ 55,000,000			$ 10,000,000	$ 65,000,000
Debt Instrument Libor Floor Rate														4.00%
Debt Instrument, Frequency of Periodic Payment																		19 quarterly payments
Long Term Debt Principal Portion Amortization Schedule														120 months