Leases (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Rail Cars [Member]
Operating Leases, Rent Expense, Net	$ 176
Hopper Cars [Member]
Operating Leases, Rent Expense, Net	75
Hopper Cars [Member]
Operating Leases, Rent Expense, Net	620
Hopper Cars [Member]
Operating Leases, Rent Expense, Net	0
Hopper Cars [Member]
Operating Leases, Rent Expense, Net	36,000
Rail Cars [Member]
Operating Leases, Rent Expense, Net	121,000
Rail Cars [Member]
Operating Leases, Rent Expense	361,000	318,000	1,067,000	955,000
Hopper Cars [Member]
Operating Leases, Rent Expense	139,500	139,500	418,500	418,500
Heron Lake Bioenergy [Member] | Rail Cars [Member]
Operating Leases, Rent Expense	$ 406,000	$ 650,000	$ 1,313,000	$ 1,400,000