Note 15 - Condemnation (Details) (USD $)	0 Months Ended	1 Months Ended				3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 03, 2012	Aug. 31, 2013	Jul. 31, 2012	Jun. 30, 2010	Mar. 31, 2006	Mar. 31, 2013	Sep. 30, 2013	Apr. 30, 2014	Jun. 30, 2006 acre
Note 15 - Condemnation (Details) [Line Items]
Proceeds from Legal Settlements	$ 167,530,657		$ 167,530,657		$ 26,315,000
Litigation Settlement, Amount				125,000,000
Payments for Legal Settlements						29,000
Area of Land (in Acres)									245.5
Payments for Delayed Tax Exempt Exchange								26,315,000
Excise Tax Percentage		4.00%					4.00%
Dividends							98,685,000
Dividends Payable, Amount Per Share (in Dollars per share)							$ 66.56
Dividends, Cash							68,000,000
Cash Dividends [Member]
Note 15 - Condemnation (Details) [Line Items]
Dividends Payable, Amount Per Share (in Dollars per share)							$ 45.86
Additional Damanges [Member]
Note 15 - Condemnation (Details) [Line Items]
Litigation Settlement, Amount	98,685,000		98,685,000
Costs, Disbursements and Expenses [Member]
Note 15 - Condemnation (Details) [Line Items]
Litigation Settlement, Amount	1,474,941		1,474,941
Interest [Member]
Note 15 - Condemnation (Details) [Line Items]
Litigation Settlement, Amount	$ 67,370,716		$ 67,370,716