OTHER LONG-TERM ASSETS (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
OTHER LONG-TERM ASSETS
Prepaid expenses, long-term portion	$ 1,156us-gaap_PrepaidExpenseNoncurrent	$ 1,585us-gaap_PrepaidExpenseNoncurrent
Capitalized debt issuance costs	849us-gaap_UnamortizedDebtIssuanceExpense	0us-gaap_UnamortizedDebtIssuanceExpense
Other long-term assets	707us-gaap_PrepaidExpenseOtherNoncurrent	438us-gaap_PrepaidExpenseOtherNoncurrent
Total other long-term assets, net	$ 2,712us-gaap_PrepaidExpenseAndOtherAssets	$ 2,023us-gaap_PrepaidExpenseAndOtherAssets

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

+ References

+ Details

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- Definition

Carrying amount as of the balance sheet date of amounts paid in advance which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 4

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765

+ Details

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

+ Details

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