Annual report pursuant to Section 13 and 15(d)

INCOME TAXES, Net Operating Loss Carryforwards (Details)

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INCOME TAXES, Net Operating Loss Carryforwards (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Net Operating Loss Carryforwards [Abstract]    
Reduction of net deferred tax assets $ (3,900,000)  
Reduction of valuation allowance (3,900,000)  
Unrecognized tax benefits $ 0 $ 0
Minimum [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards, expiration Dec. 31, 2027  
Maximum [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards, expiration Dec. 31, 2041  
Federal [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards $ 299,900,000  
Write-off of federal NOLs 3,000,000.0  
Write-off of federal research and development tax credits 1,000,000.0  
Federal [Member] | 2027 through 2040 [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards 55,200,000  
State [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards 185,000,000.0  
Write-off of state NOLs 28,100,000  
State [Member] | 2027 through 2040 [Member]    
Net Operating Loss Carryforwards [Abstract]    
Net operating loss carryforwards $ 77,800,000