Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Allowance for credit losses $ 24,200 $ 179,000
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 70,000,000 70,000,000
Common stock, shares issued [1] 65,088,575 65,088,575
Common stock, shares outstanding 65,088,575 65,088,575
Note Agreements [Member]    
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]    
Common stock, shares issuable 2,785,000 2,785,000
[1] Includes 2,785,000 shares issuable at December 31, 2023 and December 31, 2022, per terms of note agreements.