Term Loans Payable And Revolving Line Of Credit (Minimum Adjusted EBITDA) (Details) - 2019 Credit Agreement, First Modification Agreement [Member] $ in Thousands	12 Months Ended
	Aug. 31, 2020 USD ($)
August 31, 2020 [Member]
Debt Instrument [Line Items]
Minimum Adjusted EBITDA	$ 11,000
November 30, 2020 [Member]
Debt Instrument [Line Items]
Minimum Adjusted EBITDA	8,500
February 28, 2021 [Member]
Debt Instrument [Line Items]
Minimum Adjusted EBITDA	5,000
May 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum Adjusted EBITDA	$ 15,000