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Commitments and Contingencies (Tables)
6 Months Ended
Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
Future annual minimum payments under the lease as of June 30, 2019 for the respective calendar year were as follows (in thousands):
2019
$
202

2020
277

Total
$
479