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Share-Based Compensation (Notes) | 12 Months Ended
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Dec. 31, 2013
Share-based Compensation [Abstract] |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] | Share-Based Compensation Share-based Compensation We utilize share-based compensation in the form of stock options, warrants and restricted stock. The following table summarizes the components of share-based compensation expense for the year ended December 31, 2013 and 2012 ($ in thousands):
| Year Ended December 31,
| 2013 |  | 2012
Cost of goods sold | $ | 314.0 |  |  | $ | 195.0 |
Research and development | 822.2 |  |  | 432.9 |
Selling, general and administrative | 5,702.5 |  |  | 6,084.6 |
Total share-based compensation expense | $ | 6,838.7 |  |  | $ | 6,712.5 |
Total compensation cost related to nonvested awards not yet recognized and the weighted-average periods over which the awards are expected to be recognized at December 31, 2013 were as follows ($ in thousands):
| Stock Options |  | Warrants |  | Restricted Stock
Unrecognized compensation cost | $ | 2,422.2 |  |  | $ | 55.6 |  |  | $ | 335.6 |
Expected weighted-average period in years of compensation cost to be recognized | 3.51 |  |  | 1.54 |  |  | 0.38 |
Total fair value of shares vested and the weighted average estimated fair values of shares grant for the year ended December 31, 2013 and 2012 were as follows ($ in thousands):
|  | Stock Options |  | Warrants
|  | Year Ended December 31, |  | Year Ended December 31,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Total fair value of shares vested |  | $ | 3,375.7 |  |  | $ | 5,408.0 |  |  | $ | 129.0 |  |  | $ | 171.6 |
Weighted average estimated fair value of shares granted |  | 4.29 |  |  | 3.63 |  |  | 3.71 |  |  | 4.10 |
Valuation Assumptions The fair value of stock options and warrants at the date of grant was estimated using the Black-Scholes option pricing model. The expected volatility is based upon historical volatility of the Company’s stock. The expected term for the options is based upon observation of actual time elapsed between date of grant and exercise of options for all employees. The expected term for the warrants is based upon the contractual term of the warrants. The range of assumptions made in calculating the fair values of stock options and warrants was as follow:
|  | Stock Options |  | Warrants
|  | Year Ended December 31, |  | Year Ended December 31,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Expected term - minimum (in years) |  | 1 |  | 2 |  | 2 |  | 2
Expected term - maximum (in years) |  | 10 |  | 10 |  | 5 |  | 5
Expected volatility - minimum |  | 61% |  | 73% |  | 73% |  | 76%
Expected volatility - maximum |  | 79% |  | 84% |  | 79% |  | 83%
Expected dividend yield |  | — |  | — |  | — |  | —
Risk-free interest rate - minimum |  | 0.13% |  | 0.28% |  | 0.32% |  | 0.27%
Risk-free interest rate - maximum |  | 2.67% |  | 1.99% |  | 1.73% |  | 0.88%

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -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 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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