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EMPLOYEE 401(K) PLAN (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Defined Contribution Plan [Line Items] |  |  |
Employer matching contribution (in percent) | 50.00% |  |
Maximum employee annual salary contribution (in percent) | 15.00% |  |
Maximum employee annual salary contribution amount | $ 0 |  |
Employer contribution | $ 0.3 | $ 0.3 | $ 0.2
Maximum [Member] |  |  |
Defined Contribution Plan [Line Items] |  |  |
Maximum annual contribution per employee (in percent) | 6.00% |  |

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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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