COMMITMENTS (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Amount of Commitment Expiration Per Period
Less Than 1 Year	$ 11,986
1-3 Years	521
3-5 Years	73
More Than 5 Years	1,437
Total Amounts Committed	14,017
Purchase obligations
Amount of Commitment Expiration Per Period
Less Than 1 Year	10,710
1-3 Years	521
3-5 Years	0
More Than 5 Years	0
Total Amounts Committed	11,231
Letters of credit and surety bonds
Amount of Commitment Expiration Per Period
Less Than 1 Year	1,276
1-3 Years	0
3-5 Years	73
More Than 5 Years	1,437
Total Amounts Committed	$ 2,786