Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Details)

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Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]  
Beginning balance $ 628
Increase of unrecognized tax benefits taken in prior years (46)
Increase of unrecognized tax benefits related to current year 55
Ending balance $ 637