Cash and Cash Equivalents and Restricted Cash (Table) (Details) - USD ($) $ in Thousands |
Jun. 30, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|---|---|
| Current assets | ||||
| Cash and cash equivalents | $ 15,156 | $ 16,958 | ||
| Restricted cash | 1,699 | 1,934 | ||
| Total cash and cash equivalents and restricted cash | $ 16,855 | $ 18,892 | $ 41,100 | $ 14,501 |