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Commitments (Tables)
6 Months Ended
Jun. 30, 2019
Commitments [Abstract]  
Future minimum lease revenues receivable under non-cancellable operating leases

 

June 30, 2019

December 31, 2018

Within one year

1,585

2,991

Total

1,585

2,991

 

Future minimum lease payments

 

 

June 30, 2019

Within one year

 

165

After one year but not more than five years 

 

567

More than five years

 

72

Total

 

804