Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (New Accounting Pronouncements) (Narrative) (Details)

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Significant Accounting Policies (New Accounting Pronouncements) (Narrative) (Details) - USD ($)
$ in Thousands
Jan. 01, 2019
Dec. 31, 2020
Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Lease, Practical Expedients, Package [true false] true    
Operating Lease, Right-of-Use Asset   $ 1,088 $ 1,196
Operating Lease, Liability   $ 2,228  
Accounting Standards Update 2016-02 | Restatement Adjustment      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating Lease, Right-of-Use Asset $ 1,200    
Operating Lease, Liability 2,000    
Deferred Rent Credit $ 700