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Share-Based Compensation Share-Based Compensation (Details) (USD $) | 3 Months Ended | 6 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, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 Stock Option [Member] | Jun. 30, 2013 Warrants | Jun. 30, 2012 Warrants | Dec. 31, 2012 Warrants | Jun. 30, 2013 Stock Options [Member] | Dec. 31, 2012 Stock Options [Member] | Jun. 30, 2013 Restricted Stock [Member] | Jun. 30, 2013 Cost of revenue | Jun. 30, 2012 Cost of revenue | Jun. 30, 2013 Cost of revenue | Jun. 30, 2012 Cost of revenue | Jun. 30, 2013 Research and development | Jun. 30, 2012 Research and development | Jun. 30, 2013 Research and development | Jun. 30, 2012 Research and development | Jun. 30, 2013 Selling, general and administrative | Jun. 30, 2012 Selling, general and administrative | Jun. 30, 2013 Selling, general and administrative | Jun. 30, 2012 Selling, general and administrative | Jun. 30, 2013 Stock Option [Member] | Jun. 30, 2012 Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allocated Share-based Compensation Expense | $ 1,095,700 | $ 1,086,400 | $ 3,314,200 | $ 3,555,000 |  |  |  |  |  |  |  | $ 58,500 | $ 16,400 | $ 145,000 | $ 100,300 | $ 129,800 | $ 98,900 | $ 347,100 | $ 260,200 | $ 907,400 | $ 971,100 | $ 2,822,100 | $ 3,194,500 |  |
Unrecognized compensation cost |  |  |  |  | 1,441,700 | 24,100 |  |  |  |  | 305,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected weighted-average period in years of compensation cost to be recognized |  |  |  |  | 1 year 4 months 28 days | 5 months 19 days |  |  |  |  | 2 months 27 days |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total fair value of shares vested |  |  |  |  |  | $ 80,900 | $ 43,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,646,300 | $ 3,063,200
Weighted average estimated fair value of shares granted |  |  |  |  |  | $ 3.51 |  | $ 3.19 | $ 4.58 | $ 3.38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition This element represents the amount of recognized equity-based compensation related to stock options during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). + 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 Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -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 3: 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=6793087&loc=d3e301413-122809 Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -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 6: 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 As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph h -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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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest. + 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 (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph d(2) -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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