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Note 14 - Commitments and Contingencies (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2024
Oct. 04, 2023
Oct. 02, 2020
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Increase (Decrease) in Other Employee-Related Liabilities           $ 81 $ 589      
Share Price $ 2.37     $ 2.37   $ 2.37        
Payment for Contingent Consideration Liability, Financing Activities           $ 219 (0)      
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability           $ 44 $ 0      
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock       $ 158 $ 527          
Additional Paid-in Capital [Member]                    
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock       158 $ 527          
Assets Acquisition of Amika Mobile Corporation [Member]                    
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Each Anniversaries     191,267              
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)     573,801     69,564   69,564    
Share Price     $ 5.98              
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable     $ 3,431              
Assets Acquisition of Amika Mobile Corporation [Member] | Former Owner of Amika Mobile [Member]                    
Stock Issued During Period, Shares, Acquisitions           69,564   69,564 69,564 365,109
Evertel Technologies, LLC [Member]                    
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)   986,486                
Share Price   $ 1.95                
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High   $ 1,050                
Business Combination, Contingent Consideration, Liability Settled           $ 874        
Payment for Contingent Consideration Liability, Financing Activities           219        
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability           44        
Business Combination, Contingent Consideration, Liability $ 60 890   60   $ 60        
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock       158            
Evertel Technologies, LLC [Member] | Additional Paid-in Capital [Member]                    
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   $ 527   158            
Evertel Technologies, LLC [Member] | Contingent Consideration Liability [Member]                    
Stock Issued During Period, Shares, Acquisitions 236,343         236,343        
Evertel Technologies, LLC [Member] | Acquisition Holdback Liability [Member]                    
Business Combination, Contingent Consideration, Liability $ 240     $ 240   $ 240        
Evertel Technologies, LLC [Member] | Agreement to Issue Stock [Member]                    
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)   270,270                
Share Price   $ 1.95                
Evertel Technologies, LLC [Member] | Agreement to Issue Stock [Member] | Additional Paid-in Capital [Member]                    
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock   $ 527