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Debt (Details)
1 Months Ended 6 Months Ended
May 15, 2017
USD ($)
Sep. 30, 2019
USD ($)
ft²
Feb. 29, 2020
USD ($)
Aug. 31, 2019
USD ($)
Line of Credit Facility, Current Borrowing Capacity     $ 15,000,000  
Line of Credit Facility, Remaining Borrowing Capacity     $ 10,000,000  
Line of Credit Facility, Expiration Date     Jul. 05, 2021  
Debt Instrument, Description of Variable Rate Basis     (A) The default variable interest index rate, which is Citizens Business Bank Prime Rate of Interest, which is the prime rate (4.75% and 5.25% at February 29, 2020 and August 31, 2019, respectively) less 0.500%  
Default Variable Interest Rate     (B) One Hundred Eighty (180) day Libor Rate plus a margin of 1.550%  
Line of Credit Facility, Interest Rate Description     The amounts outstanding under this line of credit as of February 29, 2020 and August 31, 2019 are currently all under the default variable interest index rate of 4.25% and 4.75%, respectively.  
Percentage of Default Variable Interest     4.25% 4.75%
Long-term Line of Credit     $ 9,213,000 $ 6,114,000
Operating Lease Office Space | ft²   80,000    
Debt Instrument, Maturity Date   May 15, 2027    
Construction Loan     3,794,000 $ 342,000
Proceeds from Sale of Property, Plant, and Equipment   $ 7,075,000 7,075,000  
Financial Guarantee [Member]        
Proceeds from Issuance of Long-term Debt $ 5,400,000      
Construction Loan Payable [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   5,000,000    
Long-term Line of Credit   $ 5,000,000    
Minimum [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 10,000,000  
Debt Instrument, Basis Spread on Variable Rate     3.50%  
Maximum [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 15,000,000  
Prime Rate [Member]        
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate     4.75% 5.25%
Percentage of Default Variable Interest     4.75% 5.25%
One Hundred Eighty Day London Interbank Offered Rate (LIBOR) [Member]        
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate     1.55%