Debt (Details Textual) - USD ($)	9 Months Ended
	May 31, 2017	Aug. 31, 2016
Line of Credit Facility [Line Items]
Long-term Line of Credit	$ 6,515,000	$ 0
Line of Credit Facility, Remaining Borrowing Capacity	3,485,000	$ 10,000,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,000,000
Line of Credit Facility, Interest Rate Description	bear interest at either the 30, 60 or 90 day London Inter-Bank Offered Rate (LIBOR) (1.19% and 0.81% for the 90 day LIBOR at May 31, 2017 and August 31, 2016, respectively) plus 1.75% and/or the banks reference rate (4% and 3.5% at May 31, 2017 and August 31, 2016, respectively).
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Mar. 01, 2019
Community Bank [Member]
Line of Credit Facility [Line Items]
Long-term Debt	$ 5,400,000
Debt Instrument, Interest Rate During Period	1.79%