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Note 6 - Accrued Liabilities
6 Months Ended
Mar. 31, 2021
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
6.
   
Accrued Liabilities
 
Accrued liabilities consist of the following:
 
   
As of

March 31,
2021
   
As of

September 30,
2020
 
Compensation and benefits
  $
324
    $
368
 
Professional fees
   
32
     
29
 
Taxes
   
132
     
46
 
Insurance
   
65
     
-
 
Other
   
148
     
156
 
Balance at end of period
  $
701
    $
599