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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Accounts receivable, allowance for doubtful accounts $ 48,909 $ 59,559
Inventories, allowance for excess and obsolete inventory 898,944 663,227
Property and equipment, accumulated depreciation 10,713,077 9,046,499
Intangible assets, accumulated depreciations 509,641 438,250
Debt discount $ 1,455,127 $ 519,686
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 2,500,000 2,500,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shared outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, authorized (in shares) 12,500,000 12,500,000
Common stock, issued (in shares) 5,727,310 5,498,260
Common stock, outstanding (in shares) 5,727,310 5,498,260