FAIR VALUE (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	$ 7,900	$ 8,100
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds – Fidelity, US	12	319
Interest bearing deposits – various banks	19,357	14,134
Cash and cash equivalents	13,326	8,281
Restricted cash	737	737
Long-term restricted cash	5,306	5,435
Total	19,369	14,453
Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds – Fidelity, US	12	319
Interest bearing deposits – various banks	19,357	14,134
Cash and cash equivalents	13,326	8,281
Restricted cash	737	737
Long-term restricted cash	5,306	5,435
Total	19,369	14,453
Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds – Fidelity, US	0	0
Interest bearing deposits – various banks	0	0
Cash and cash equivalents	0	0
Restricted cash	0	0
Long-term restricted cash	0	0
Total	0	0
Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds – Fidelity, US	0	0
Interest bearing deposits – various banks	0	0
Cash and cash equivalents	0	0
Restricted cash	0	0
Long-term restricted cash	0	0
Total	$ 0	$ 0