Debt (Details Textual) - USD ($)	3 Months Ended
	Nov. 30, 2016	Aug. 31, 2016
Line of Credit Facility [Line Items]
Long-term Line of Credit	$ 4,079,000	$ 0
Line of Credit Facility, Remaining Borrowing Capacity	5,921,000	$ 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”) (0.91% and 0.81% for the 90 day LIBOR at November 30, 2016 and August 31, 2016, respectively) plus 1.75% and/or the bank’s reference rate (3.50% at November 30, 2016 and August 31, 2016).
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	Mar. 01, 2017