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SHARE-BASED COMPENSATION (Details) - $ / shares | 6 Months Ended
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Jun. 30, 2015
2007 EIP |
SHARE-BASED COMPENSATION |
Number of shares of common stock reserved for grants | 691,051
Common stock issued under share-based compensation plan | 247,714
2012 EIP |
SHARE-BASED COMPENSATION |
Number of shares of common stock reserved for grants | 1,200,000
Common stock issued under share-based compensation plan | 419,915
2015 EIP |
SHARE-BASED COMPENSATION |
Number of shares of common stock reserved for grants | 1,100,000
Common stock issued under share-based compensation plan | 0
Stock Options |
SHARE-BASED COMPENSATION |
Expiration term | 10 years
Summary of the stock option activity |
Outstanding at the beginning of the period (in shares) | 158,718
Granted (in shares) | 0
Outstanding at the end of the period (in shares) | 158,718
Exercisable (in shares) | 133,483
Weighted Average Exercise Price |
Outstanding at the beginning of the period (in dollars per share) | $ 16.64
Outstanding at the end of the period (in dollars per share) | 16.64
Exercisable (in dollars per share) | $ 19.15
Stock Options | 2007 EIP |
SHARE-BASED COMPENSATION |
Number of shares reserved | 57,783
Stock Options | 2012 EIP |
SHARE-BASED COMPENSATION |
Number of shares reserved | 100,935
Stock Options | Minimum |
SHARE-BASED COMPENSATION |
Vesting term | 1 year
Stock Options | Maximum |
SHARE-BASED COMPENSATION |
Vesting term | 5 years
Restricted stock unit (RSU) | 2007 EIP |
SHARE-BASED COMPENSATION |
Number of shares reserved | 8,683
Restricted stock unit (RSU) | 2012 EIP |
SHARE-BASED COMPENSATION |
Number of shares reserved | 449,613
Restricted stock unit (RSU) | 2015 EIP |
SHARE-BASED COMPENSATION |
Number of shares reserved | 47,216
Restricted stock unit (RSU) | Minimum |
SHARE-BASED COMPENSATION |
Vesting term | 1 year
Restricted stock unit (RSU) | Maximum |
SHARE-BASED COMPENSATION |
Vesting term | 5 years

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- Definition Aggregate number of common shares reserved for future issuance. + 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 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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