| Fair Value of Financial Instruments |
| | | | | | | | | | | | | | | | | | | June 30, 2019 | | | December 31, 2018 | | | | Book Value | | | Fair Value | | | Book Value | | | Fair Value | | Cash and cash equivalents | | $ | 15,156 | | | $ | 15,156 | | | $ | 16,958 | | | $ | 16,958 | | Restricted cash | | $ | 1,699 | | | $ | 1,699 | | | $ | 1,934 | | | $ | 1,934 | | Balance due from related parties, non-current | | $ | 8,195 | | | $ | 8,195 | | | $ | 7,862 | | | $ | 7,862 | | Long-term debt, including current portion, net | | $ | (183,004 | ) | | $ | (185,842 | ) | | $ | (133,196 | ) | | $ | (135,075 | ) | Financial liability, including current portion, net | | $ | (82,392 | ) | | $ | (83,903 | ) | | $ | (85,765 | ) | | $ | (87,530 | ) |
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| Fair Value Measurements on a Recurring Basis |
| | | | | | | | | | | | | | | | | | | Fair Value Measurements at June 30, 2019 | | | | Total | | | (Level I) | | | (Level II) | | | (Level III) | | Cash and cash equivalents | | $ | 15,156 | | | $ | 15,156 | | | $ | — | | | $ | — | | Restricted cash | | $ | 1,699 | | | $ | 1,699 | | | $ | — | | | $ | — | | Balance due from related parties, non-current(1) | | $ | 8,195 | | | $ | — | | | $ | 8,195 | | | $ | — | | Long-term debt, including current portion, net(2) | | $ | (185,842 | ) | | $ | — | | | $ | (185,842 | ) | | $ | — | | Financial liability, including current portion, net (3) | | $ | (83,903 | ) | | $ | — | | | $ | (83,903 | ) | | $ | — | | | | | | | | | | | | | | | | | | | | | Fair Value Measurements at December 31, 2018 | | | | Total | | | (Level I) | | | (Level II) | | | (Level III) | | Cash and cash equivalents | | $ | 16,958 | | | $ | 16,958 | | | $ | — | | | $ | — | | | Restricted cash | | $ | 1,934 | | | $ | 1,934 | | | $ | — | | | $ | — | | | Balance due from related parties, non-current(1) | | $ | 7,862 | | | $ | — | | | $ | 7,862 | | | $ | — | | | Long-term debt, including current portion, net(2) | | $ | (135,075 | ) | | $ | — | | | $ | (135,075 | ) | | $ | — | | | Financial liability, including current portion, net (3) | | $ | (87,530 | ) | | $ | — | | | $ | (87,530 | ) | | $ | — | | | (1) The fair value of the Company’s receivable from related companies is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the counterparty’s creditworthiness. | (2) The fair value of the Company’s long-term debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the Company’s creditworthiness. | (3) The fair value of the Company’s financial liability is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the Company’s creditworthiness. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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