Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

v3.21.1
Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets, valuation allowance $ 67,073,000 $ 42,608,000
Tax credits, expiration date Dec. 31, 2033  
Interest or penalties $ 0  
Domestic Tax Authority [Member]    
Operating loss carryforwards without expiration 109,600,000  
Operating loss carryforwards subject to expiration 23,700,000  
Operating Loss Carryforwards $ 133,300,000  
Operating loss carryforwards, expiration date Dec. 31, 2035  
Income tax credits $ 4,800,000  
State and Local Jurisdiction [Member]    
Operating loss carryforwards without expiration 43,000  
Operating loss carryforwards subject to expiration 263,500,000  
Operating Loss Carryforwards $ 263,600,000  
Operating loss carryforwards, expiration date Dec. 31, 2029  
Income tax credits $ 1,200,000