Subsequent Event (Details) - USD ($)	6 Months Ended	9 Months Ended
	Feb. 12, 2017	May 31, 2017	Jun. 01, 2017
Subsequent Event [Line Items]
Maximum Reward Rebate Percentage Per Customer Yearly	2.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Membership Fee Increase			$ 5
Membership Fee			60
Membership Fee Executive- Old		$ 110
Membership Fee Executive			120
Membership Fee Upgrade			60
Maximum Annual Membership Rebate Amount Per Member - Old		$ 750
Maximum Annual Membership Rebate Amount Per Member			$ 1,000