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Leases - Components of Lease Cost (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Leases [Abstract]  
Sublease income $ (100)
Operating lease cost 628
Operating lease cost, net 528
Sublease income (403)
Lease cost 385
Restructured lease cost, net (18)
Interest on lease liabilities 1
Total lease cost, net $ 511