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CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Non-cash investing and financing activities |  |
Cash paid for interest | $ 7,530 | $ 6,728
Cash paid for estimated income taxes | 0 | 0
Accounts payable and accrued expenses |  |
Non-cash investing and financing activities |  |
Non-cash investing activities purchase of other fixed assets | $ 64 | 31
Non-cash investing activities purchase of vessels, including deposits |  | 1
Net proceeds from sale of vessels |  | 41
Payment of Series A Preferred Stock issuance costs |  | $ 153

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