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BONDS AND BONDS INTEREST PAYABLE (Details 1) - Bonds [Member] - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Year ended December 31, |  |
2020 | $ 11,541 | $ 23,148
2021 | 35,199 | 35,301
2022 | 35,199 | 35,301
2023 | 114,541 | 114,873
2024 | 12,118 | 12,153
Thereafter | 12,118 | 12,213
Total | $ 220,716 | $ 232,989

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