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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Nov. 30, 2018	Nov. 30, 2017
Cash and Cash Equivalents
Cash equivalents	$ 3,569		$ 4,980
Recent Adopted Accounting Pronouncements
Corporate statutory income tax rate		21.00%		35.00%
ASU 2016-09
Deferred Tax Assets
Deferred tax asset	$ 879
ASU 2018-02
Recent Adopted Accounting Pronouncements
Corporate statutory income tax rate	21.00%		35.00%
Reclassification resulted in a decrease to AOCI and an increase to retained earnings			$ 36