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STOCK-BASED COMPENSATION Deferred Compensation Arrangement (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Fair value of shares withheld for tax withholding obligations | $ 2,700,000 | $ 2,800,000
Director [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Vesting period | 1 year |
Fair value of shares issued | 160,000 | 138,000
Deferred Compensation Arrangement with Individual, Shares Issued | 5,000 |
Restricted Stock and Units [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 57,527 |
Shares withheld for tax withholding obligations (in shares) | 78,924 | 88,063
Restricted Stock and Units [Member] | Selling, General and Adminstrative Expense [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Compensation expense | 900,000 | 767,000
Restricted Stock and Units [Member] | Research and Development Expense [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Compensation expense | 374,460.62 | 300,000
Performance Shares [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 36,092 |
Performance Shares [Member] | Selling, General and Adminstrative Expense [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Compensation expense | 461,000 | 38,000
Performance Shares [Member] | Research and Development Expense [Member] |  |
Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items] |  |
Compensation expense | $ 173,000 | $ 11,000

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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 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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