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Note 16 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Oct. 02, 2020
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Mar. 18, 2021
Mar. 17, 2021
Dec. 31, 2018
Common Stock, Shares Authorized (in shares)   100,000,000 100,000,000   100,000,000 50,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period   84,765 145,235        
Gross Proceeds from Stock Options Exercised   $ 138 $ 282        
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures     270,262        
Preferred Stock, Shares Authorized   5,000,000 5,000,000        
Preferred Stock, Par or Stated Value Per Share   $ 0.00001 $ 0.00001 $ 0.00001      
Preferred Stock, Shares Outstanding, Ending Balance (in shares)   0 0        
Share Buyback Program [Member]              
Stock Repurchased and Retired During Period, Shares     259,310        
Stock Repurchase Program, Authorized Amount             $ 5,000
Stock Repurchased During Period, Value     $ 998        
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 573,801 69,564          
Business Acquisition, Share Price $ 5.98            
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable $ 3,431     $ 3,431      
Assets Acquisition of Amika Mobile Corporation [Member] | Former Owner of Amika Mobile [Member]              
Stock Issued During Period, Shares, Acquisitions   69,564 69,564 365,109      
Restricted Stock Units (RSUs) [Member]              
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures   253,012          
Share-Based Payment Arrangement, Employee [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period   162,841          
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises, Net Share Settlement Transaction   816,747          
Stock Used as Consideration of Option Exercises   579,300          
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation   74,606          
Share-Based Payment Arrangement, Employee [Member] | Incentive Stock Options [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period   150,753          
Stock Repurchased and Retired During Period, Shares   109,488