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Note 4 - Held for Sale and Discontinued Operation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Sep. 14, 2023
Mar. 31, 2023
Amortization of intangible assets   $ 175
Discontinued Operations [Member]    
Amortization of intangible assets   $ 492
Intrinsix Corp. [Member]    
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred $ 240  
Intrinsix Corp. [Member]    
Sale of Stock, Consideration 35,000  
Sale of Stock, Amount Held for Post Closing Price Adjustment 300  
Sale of Stock, Amount Held for Indemnification Obligations $ 3,500