Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]    
Provision for income taxes
Operating loss carry-forward $ 156,586,000 147,086,000
Net operating loss carry-forwards expiration Dec. 31, 2021  
Federal And State [Member]    
Operating Loss Carryforwards [Line Items]    
Provision for income taxes $ 0 $ 0