Significant Accounting Policies and Significant Recent Accounting Pronouncements (Details) - USD ($)	9 Months Ended		12 Months Ended
	May 31, 2020	May 31, 2019	Aug. 31, 2019
Significant Accounting Policies [Line Items]
Allowance for Doubtful Accounts Receivable	$ 169,000		$ 169,000
Inventory Valuation Reserves	1,656,000		1,527,000
Restricted Cash and Cash Equivalents, Current	$ 69,000		$ 655,000	[1]
Exchange Rate On Foreign Currency Translation And Transactions	$ 0.74	$ 0.75
Percentage of Revenue Per Entity, Maximum	10.00%	10.00%
Operating Lease, Right-of-Use Asset	$ 12,428,000
Accounting Standards Update 2016-02 [Member]
Significant Accounting Policies [Line Items]
Operating Lease, Right-of-Use Asset	12,400,000
Operating Lease, Liability	$ 12,600,000
Sales Revenue, Net [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	9.00%	9.00%
Accounts Receivable [Member]
Significant Accounting Policies [Line Items]
Concentration Risk, Percentage	11.00%		12.00%

[1] Derived from the Company’s audited financial statements included in its Form 10K for the year ended August 31, 2019 as filed with the U. S. Securities and Exchange Commission on November 27, 2019.