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Income Taxes (Summary of Operating Loss Carryforwards) (Details)
$ in Thousands
12 Months Ended
Aug. 31, 2017
USD ($)
Operating Loss Carryforwards [Line Items]  
Amount $ 25,241
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward 25,241
Acquired NOL [Member]  
Operating Loss Carryforwards [Line Items]  
Amount 7,741
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 7,741
December 31, 2012 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward Expires Aug. 31, 2031
Amount $ 243
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 243
December 31, 2013 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward Expires Aug. 31, 2032
Amount $ 553
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 553
December 31, 2014 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward Expires Aug. 31, 2033
Amount $ 1,285
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 1,285
December 31, 2015 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward 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 Carryforward 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 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward Expires Aug. 31, 2036
Amount $ 1,117
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 1,117
August 31, 2017 [Member]  
Operating Loss Carryforwards [Line Items]  
Loss Carryforward Expires Aug. 31, 2037
Amount $ 17,500
Loss Deductions in Prior Years
Loss Deductions in Current Year
Operating Loss Carried Forward $ 17,500