Contingencies and Commitments (Details) (USD $)	9 Months Ended
	Jun. 30, 2014
Contingencies and Commitments (Textual)
Mortgages, minimum interest rate	3.83%
Mortgages, maximum interest rate	5.25%
Mortgage loans weighted average interest rate	4.25%
Expected remaining expansion costs	$ 13,124,000
Commitment Buliding [Member]
Contingencies and Commitments (Textual)
Mortgage Loans committed on real estate, carrying amount of mortgages	103,220,000
Agreement One [Member]
Contingencies and Commitments (Textual)
Number of industrial properties committed to be acquired by company	11
Nummber of mortgages industrial porperties to be acquired company as per commitment	7
Area of buildings (in square foot)	3,454,000
Lease period of industrial properties acquired	Seven to fifteen years
Percentage of building area leased to fedex ground package systems, inc	52.00%
Annual rental revenue	17,581,000
Aggregate purchase price of industrial properties committed to be acquired	255,665,000
Anticipated period for closer of transactions	Closing on three of the acquisitions with a cost of approximately $48,789,000 during the remainder of fiscal 2014 and closing on the remaining eight acquisitions with a cost of approximately $206,876,000 during fiscal 2015.
Deposits on acquisitions included in other assets	3,050,000
Commitment and loan processing fees	791,100
Commitment and loan processing fees refunded at each respective closing	736,700
Agreement One [Member] | Fiscal 2014
Contingencies and Commitments (Textual)
Expected acquisition costs to be incurred in remaining fiscal period	48,789,000
Agreement One [Member] | Fiscal 2015
Contingencies and Commitments (Textual)
Expected acquisition costs to be incurred in next fiscal period	206,876,000
Agreement Two [Member]
Contingencies and Commitments (Textual)
Additional square feet committed to be added to existing buildings	235,800
Number of existing buildings to be expanded by company	5
Number of building leased to FedEx Ground Package System, Inc.	4
Expansion costs	18,705,000
Expected remaining expansion costs	5,581,000
Expected expansion cost per square foot	79.33
Extension in lease period after building expansions	10 years
Increased rent after completion of expansions	$ 1,870,000