Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
$ in Thousands
Dec. 31, 2017
USD ($)
Commitments And Contingencies [Line Items]  
2018 $ 287
2019 299
2020 308
2021 155
2022 and thereafter 0
Operating Leases, Future Minimum Payments Due $ 1,049