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Summary of Significant Accounting Policies (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
segment
Concentration of Credit Risk  
Deposits in excess of federally insured amounts $ 13,200
Income Taxes  
Provision (benefit) for income taxes $ 0
Segment Information  
Number of operating segment | segment 1
Minimum  
Estimated useful life 3 years
Maximum  
Estimated useful life 5 years