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Business Overview (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2022
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Cash and cash equivalents, at carrying value   $ 27,518   $ 27,518   $ 24,545
Loss from operations   3,639 $ 16,105 12,961 $ 23,321  
Net operating activities       7,928 $ 5,725  
Accumulated deficit   76,734   76,734   78,879
Acquisition contract liabilities   8,953   8,953   $ 12,784
Accrued liabilities and other liabilities   5,600   5,600    
Maruho Co. Ltd. [Member]            
Acquisition contract liabilities   $ 7,300   $ 7,300    
Common Stock [Member]            
Proceeds from stock issuance $ 4,600