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NOTE 3 — Bank Financing Arrangements (Details Narrative) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Jan. 29, 2021
Line of Credit Facility [Line Items]    
Line of Credit Facility, Initiation Date Jan. 29, 2021  
Line of Credit Facility, Expiration Date Jan. 31, 2023  
Term Loan [Member]    
Line of Credit Facility [Line Items]    
Aggregate maximum advance amount (in million)   $ 1
Domestic Revolving Facility [Member]    
Line of Credit Facility [Line Items]    
Aggregate maximum advance amount (in million)   $ 2