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Prepaid Expenses (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Research and development $ 179,000 $ 168,000 $ 1,226,000 $ 1,080,000
Prepaid expenses 183,000   104,000 44,000
GRDG Science LLC [Member] | Related Party [Member]        
Prepaid expenses includes prepaid inventory 140,000   60,000  
Research and development $ 43,000 $ 43,000 43,000  
Prepaid expenses     $ 104,000 $ 43,000