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Income Taxes (Summary of Operating Loss Carryforwards) (Details)
$ in Thousands
12 Months Ended
Aug. 31, 2019
USD ($)
Operating Loss Carryforwards [Line Items]  
Amount $ 34,608
Loss Deductions in Prior Years
Loss Deductions in Current Year (8,649)
Operating Loss Carried Forward $ 25,959
December 31, 2012 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2031
Amount $ 243
Loss Deductions in Prior Years
Loss Deductions in Current Year $ (243)
December 31, 2013 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2032
Amount $ 553
Loss Deductions in Prior Years
Loss Deductions in Current Year $ (553)
December 31, 2014 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2033
Amount $ 1,285
Loss Deductions in Prior Years
Loss Deductions in Current Year (1,019)
Operating Loss Carried Forward $ 266
December 31, 2015 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2034
Amount $ 1,491
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 1,491
December 31, 2016 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2035
Amount $ 3,052
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 3,052
July 15, 2017 Acquired NOL [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2036
Amount $ 1,117
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward 1,117
December 31, 2012 To July 15, 2017 Acquired NOL [Member]  
Operating Loss Carryforwards [Line Items]  
Amount 7,741
Loss Deductions in Prior Years
Loss Deductions in Current Year (1,815)
Operating Loss Carried Forward $ 5,926
August 31, 2017 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires Aug. 31, 2037
Amount $ 16,361
Loss Deductions in Prior Years
Loss Deductions in Current Year (6,834)
Operating Loss Carried Forward $ 9,527
August 31, 2018 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Expires No expiration
Amount $ 10,506
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 10,506