Leases - Maturities of lease receivables (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Maturities of lease receivables  
2019 $ 21
2020 84
2021 86
2022 87
2023 89
Thereafter 1,068
Total lease receivables 1,435
Less imputed interest (598)
Present value of lease receivables 837
Plus Unguaranteed residual 252
Plus Deferred operations and maintenance expenses 58
Less Initial direct costs (80)
Total $ 1,067