Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Narrative (Details)

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Income Taxes - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2018
Aug. 31, 2018
Nov. 30, 2017
Income Tax Contingency [Line Items]      
Federal and state tax rate 24.13% 24.13% 36.45%
Higher rate due to tax law effective rate   25.19%  
Accounting Standards Update 2015-07      
Income Tax Contingency [Line Items]      
Reclassification from current deferred tax assets     $ (2,079,988)