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STOCK-BASED COMPENSATION Deferred Compensation Arrangement (Details) (USD $) | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 Non Employee Members of Scientific Advisory Board [Member] | Dec. 31, 2012 Non Employee Members of Scientific Advisory Board [Member] | Jun. 30, 2014 Director [Member] | Jun. 30, 2013 Director [Member] | Jun. 30, 2014 Director [Member] | Jun. 30, 2013 Director [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Research and Development Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Research and Development Expense [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Research and Development Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Research and Development Expense [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Non Employee Members of Scientific Advisory Board [Member] Research and Development Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Non Employee Members of Scientific Advisory Board [Member] Research and Development Expense [Member] | Jun. 30, 2014 Restricted Stock and Units [Member] Non Employee Members of Scientific Advisory Board [Member] Research and Development Expense [Member] | Jun. 30, 2013 Restricted Stock and Units [Member] Non Employee Members of Scientific Advisory Board [Member] Research and Development Expense [Member] | Jun. 30, 2014 Performance Shares [Member] | Jun. 30, 2014 Performance Shares [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2013 Performance Shares [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2014 Performance Shares [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2013 Performance Shares [Member] Selling, General and Adminstrative Expense [Member] | Jun. 30, 2014 Performance Shares [Member] Research and Development Expense [Member] | Jun. 30, 2013 Performance Shares [Member] Research and Development Expense [Member] | Jun. 30, 2014 Performance Shares [Member] Research and Development Expense [Member] | Jun. 30, 2013 Performance Shares [Member] Research and Development Expense [Member]
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock awards and units vesting terms | 2 years |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  |  |  |  |  | 59,027 |  |  |  |  |  |  |  |  |  |  |  |  |  | 36,092 |  |  |  |  |  |  |  |
Compensation expense |  |  |  |  |  |  |  |  |  |  | $ 914,000 | $ 1,100,000 | $ 1,800,000 | $ 1,900,000 | $ 409,000 | $ 417,000 | $ 783,000 | $ 744,000 | $ 57,000 | $ 44,000 | $ 100,000 | $ 130,000 |  | $ 198,000 | $ 137,000 | $ 685,000 | $ 175,000 | $ 60,000 | $ 42,000 | $ 207,000 | $ 53,000
Fair value of shares withheld for tax withholding obligations | 2,600,000 | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares withheld for tax withholding obligations (in shares) |  |  |  |  |  |  |  |  | 75,314 | 94,087 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of shares issued |  |  | $ 323,000 | $ 300,000 | $ 202,000 | $ 126,000 | $ 363,000 | $ 264,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Shares Issued |  |  |  |  |  |  | 11,250 | 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Deferred Compensation Arrangement with Individual, Vesting Period + References No definition available. + Details
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- Definition The amount of adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References No definition available. + Details
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition The total fair value of shares issued during the period under a deferred compensation arrangement. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares issued pursuant to the terms of a deferred compensation arrangement. + 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 (l) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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 number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer. + References No definition available. + Details
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