|
Goodwill and Indefinite-Lived Intangible Assets - Additional Information (Detail) (USD $)
|
12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
OncoHist [Member]
|
Dec. 31, 2013
OncoHist [Member]
Discount Rate [Member]
|
Dec. 31, 2013
OncoHist [Member]
Milestone Income [Member]
|
Dec. 31, 2013
SymbioTec GmbH [Member]
OncoHist [Member]
Intangible_Assets
|
Dec. 31, 2012
SymbioTec GmbH [Member]
OncoHist [Member]
Intangible_Assets
|
Jan. 17, 2012
SymbioTec GmbH [Member]
OncoHist [Member]
|
Oct. 01, 2013
Goodwill [Member]
|
Oct. 01, 2012
Goodwill [Member]
|
Oct. 01, 2013
Indefinite-Lived Intangible Asset [Member]
|
Oct. 01, 2012
Indefinite-Lived Intangible Asset [Member]
|
|
| Schedule Of Goodwill And Intangible Assets [Line Items] | ||||||||||||
| Percentage of fair value in excess of carrying value | 104.00% | 58.00% | 1.00% | 87.00% | ||||||||
| Number of indefinite-lived intangible asset | 1 | 1 | ||||||||||
| Fair value of indefinite-lived intangible asset | $ 10,559,820 | $ 9,580,000 | ||||||||||
| Carrying value of indefinite-lived intangible asset | 10,318,001 | 10,112,141 | 10,318,001 | |||||||||
| Foreign currency impact on indefinite-lived intangible asset | 205,860 | |||||||||||
| Change in fair value of indefinite-lived intangible asset, percentage | 1.00% | 5.00% | ||||||||||
| Impairment of indefinite-lived intangible asset | $ 0 | $ 0 | $ 405,000 | $ 545,000 | ||||||||