General form of registration statement for all companies including face-amount certificate companies

Note 7 - Convertible Notes (Details Textual)

v3.24.3
Note 7 - Convertible Notes (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Sep. 30, 2022
Jul. 04, 2022
Feb. 02, 2022
Dec. 31, 2023
Dec. 31, 2022
May 04, 2022
Dec. 31, 2021
Gain (Loss) on Extinguishment of Debt       $ 0 $ (59)    
Convertible Debt       $ 0      
Conversion of Director Notes Into Common Stock [Member]              
Debt Conversion, Converted Instrument, Shares Issued (in shares)         106,612    
Phyto IV LP [Member] | Convertible Debt [Member]              
Debt Instrument, Face Amount           $ 150  
Gain (Loss) on Extinguishment of Debt   $ 8          
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 3       $ 7.5  
Debt Instrument, Interest Rate, Stated Percentage           10.00%  
Debt Instrument, Extension Fee Percentage           1.50%  
Convertible Debt Issued to Various Investors [Member]              
Debt Instrument, Face Amount   $ 555          
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 3          
Debt Instrument, Interest Rate, Stated Percentage   10.00%          
Debt Instrument, Extension Fee Percentage   1.50%          
Convertible Debt Issued to Various Investors [Member] | Conversion of Debt and Interest Into Common Stock [Member]              
Debt Conversion, Converted Instrument, Shares Issued (in shares) 188,734            
WPC and Origa [Member] | Convertible Debt and Stock Warrants [Member]              
Warrants and Rights Outstanding   $ 551 $ 478        
WPC and Origa [Member] | Side Letter [Member]              
Debt Instrument, Face Amount   2,936 1,886       $ 1,000
Gain (Loss) on Extinguishment of Debt   $ 509 $ (576)        
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 3 $ 7.5        
Phyto IV LP [Member] | Conversion of Debt and Interest Into Common Stock [Member]              
Debt Conversion, Converted Instrument, Shares Issued (in shares) 51,792