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Note 3 - Balance Sheet Components - Schedule of Property and Equipment (10K) (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Total property and equipment $ 871,414 $ 841,417 $ 707,159
Accumulated depreciation and amortization (658,461) (606,505) (550,221)
Total property and equipment, net 212,953 234,912 156,938
Equipment and Furnishings [Member]      
Total property and equipment 755,809 725,812 591,554
Leasehold Improvements [Member]      
Total property and equipment $ 115,605 $ 115,605 $ 115,605