Quarterly report pursuant to Section 13 or 15(d)

Debt Securities Issued (Details)

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Debt Securities Issued (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Mar. 31, 2019
Debt Securities [Abstract]    
Debt securities issued denominated in USD $ 21,384 $ 20,265
Debt securities issued denominated in RUB 7,955 7,724
Accrued interest 433 549
Total $ 29,772 $ 28,538