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Fair Value of Financial Assets and Liabilities (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2020
Sep. 30, 2019
Fair Value, Recurring    
Assets:    
Assets, Fair Value Disclosure $ 0 $ 0
Liabilities Fair Value Disclosure 0 0
Fair Value, Nonrecurring    
Assets:    
Assets, Fair Value Disclosure 0 0
Liabilities Fair Value Disclosure $ 0 0
Minimum    
Liabilities:    
Maturity term of accounts and long term receivables 1 year  
Carrying Amount    
Assets:    
Cash and cash equivalents $ 19,976 18,099
Accounts & long term receivable 7,261 7,087
Liabilities:    
Note payable 4,598 1,001
Fair Value    
Assets:    
Cash and cash equivalents 19,976 18,099
Accounts & long term receivable 7,261 7,087
Liabilities:    
Note payable $ 4,598 $ 1,001