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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
CONSOLIDATED CONDENSED BALANCE SHEETS    
Receivables, allowance for doubtful accounts $ 500 $ 800
Unamortized debt issuance costs - Current 32,100 32,100
Unamortized debt issuance costs - Noncurrent $ 96,700 $ 120,800
Common stock, par value (in dollars per share) $ 0 $ 0
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 3,486,869 3,459,673
Common stock, shares outstanding 3,486,869 3,459,673