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Commitments And Contingencies (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 31, 2015 | Mar. 31, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Commitments And Contingencies [Line Items] |  |  |  |
Unreported loss liability |  | $ 1,600,000 |  | $ 1,400,000
Recoverable insurance amounts |  | 613,000 |  | 600,000
Liability estimated after a reasonable margin for statistical fluctuations |  | 3,000,000 |  |
PerClot [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Prepaid royalties |  | 1,500,000 |  |
Intangible assets, net |  | 3,100,000 |  |
Former CEO [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Incremental expense related to agreement |  | $ 93,000 | $ 1,400,000 | $ 195,000
Starch Technology Purchase [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Term of distribution agreement |  | 15 years |  |
Number of notice days |  | 180 days |  |
Expected future contingent payment amounts to be initially recorded as research and development expense |  | $ 1,000,000 |  |
Starch Technology Purchase [Member] | Supplemental Employee Retirement Plan, Defined Benefit [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Amount paid related to achievement of contingent milestone | $ 500,000 |  |  |

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