Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Human Motion and Control Acquisition (Details Textual)

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Note 4 - Human Motion and Control Acquisition (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 05, 2022
Sep. 30, 2023
Sep. 30, 2023
Dec. 31, 2022
Goodwill   $ 431 $ 431 $ 431
Human Motion And Control [Member]        
Payments to Acquire Businesses, Gross $ 5,000      
Business Combination, Consideration Transferred, Liabilities Incurred 4,055      
Business Combination, Consideration Transferred 9,055      
Goodwill 431 431 $ 431  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles 5,240      
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)     8 years  
Amortization of Intangible Assets   82 $ 245  
Business Acquisition, Goodwill, Expected Tax Deductible Amount   $ 0 $ 0  
Human Motion And Control [Member] | Subordinated Debt [Member]        
Business Combination, Consideration Transferred, Liabilities Incurred $ 5,000      
Debt Instrument, Interest Rate, Stated Percentage 0.00%      
Debt Instrument, Periodic Payment, Number of Installments 16      
Debt Instrument, Periodic Payment $ 313