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Recent Accounting Standards Update ("ASU") (Narrative) (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
item
Jan. 01, 2019
USD ($)
Recent Accounting Standards Update ("ASU") [Abstract]    
Practical expedients package true  
Practical expedients, use of hindsight true  
ROU asset $ 464,000 $ 556,000
Lease liability $ 469,000 $ 556,000
Number of operating lease obligations | item 4