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Note 14 - Commitments and Contingencies (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Oct. 04, 2023
Oct. 02, 2020
Dec. 31, 2023
Dec. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Increase (Decrease) in Other Employee-Related Liabilities     $ 40 $ 548      
Share Price     $ 2.03        
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock     $ 527        
Additional Paid-in Capital [Member]              
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock     $ 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 $ 890   $ 926        
Evertel Technologies, LLC [Member] | Acquisition Holdback Liability [Member]              
Business Combination, Contingent Consideration, Liability     $ 235        
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