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STOCK-BASED COMPENSATION (Details) |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 04, 2013 | Apr. 30, 2015 shares | Sep. 30, 2015 shares | Dec. 31, 2014 shares | Jul. 31, 2014 shares | Dec. 31, 2013 shares | Dec. 31, 2012 shares
Stock-based compensation |  |  |  |  |  |  |
Shares of common stock authorized for issuance outstanding (in shares) |  |  | 1,356,246 | 281,029 |  |  |
Performance adjustment ratio |  | 0.144927536 |  |  |  |  |
Stock options |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Shares of common stock authorized for issuance outstanding (in shares) |  |  |  | 281,029 |  | 229,791 | 323,488
Vesting period |  |  | 4 years | 4 years |  |  |
Contractual life |  |  | 10 years | 10 years |  |  |
Performance adjustment ratio | 0.5 |  |  |  |  |  |
Stock options | Minimum |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Period following termination date vested options are exercisable |  |  | 1 month | 1 month |  |  |
Stock options | Maximum |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Period following termination date vested options are exercisable |  |  | 3 months | 3 months |  |  |
2014 Stock Incentive Plan |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Shares of common stock authorized for issuance (in shares) |  | 2,700,000 |  |  | 525,700 |  |
Shares of common stock authorized for issuance outstanding (in shares) |  |  |  | 281,029 |  |  |

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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