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Acquisitions Amorcyte Acquistion (Details) (Amorcyte Acquisition [Member], USD $) | 12 Months Ended |
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Dec. 31, 2011 | Jul. 13, 2011
Amorcyte Acquisition [Member] |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Profit Loss Since Acquisition | $ 900,000 |
Stock Converted To Contingent Common Stock Right, Value | 673,600 |
Business Acquisition, Purchase Price Allocation, Goodwill Amount |  | 4,100,000
Earn Out Payments, Percent of Net Sales | 10.00% |
Earn Out Payments Percentage Sublicensing Fees | 30.00% |
Earn Out Payment Reduced Percentage | 50.00% |
Contingent Shares Issued Upon Phase Completion, Shares | 1,364,256 |
Fair Value of Assets Acquired | 4,400,000 |
Business Acquisition, Cost of Acquired Entity, Cash Paid |  | 8,500,000
Equity Issued In Business Combination Fair Value Disclosure | 3,700,000 |
Stock Converted To Common Stock Right Value | 940,000 |
Fair Value of Earn Out Payments | $ 3,100,000 |
Earnings Per Share Basic And Diluted Since Acquisition | $ 0.01 |

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