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INCOME TAXES - Deferred tax assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Deferred tax assets:    
Share based compensation $ 2,831 $ 2,288
Intangible assets and other 745 1,984
Fixed Assets 19,193  
Research and development credit 13,292 136
Other Accural 7,514  
Net operating losses 135,948 113,999
Total deferred tax assets 179,523 118,407
Valuation allowance (179,523) (118,407)
Total deferred tax assets, net of valuation allowance $ 0 $ 0