Patent Licenses - Additional Information (Detail) |
12 Months Ended | |||||
---|---|---|---|---|---|---|
Feb. 07, 2013
Installment
|
May 14, 2004
USD ($)
|
Feb. 13, 2004
USD ($)
|
Dec. 31, 2003
USD ($)
|
Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
|
Finite-Lived Intangible Assets [Line Items] | ||||||
Option and license fees | $ 400,000 | $ 22,500 | $ 340,000 | |||
Patents and patent licenses | $ 3,530,000 | |||||
UMass IP [Member] | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Option and license fees | 75,000 | $ 75,000 | ||||
Obligation to pay royalties (Ranged) | 0.25% | |||||
Minimum annual license fee | 150,000 | $ 75,000 | ||||
Number of installments | Installment | 2 | |||||
UMass IP [Member] | Minimum [Member] | Previously Reported [Member] | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Obligation to pay royalties (Ranged) | 6.00% | |||||
UMass IP [Member] | Maximum [Member] | Previously Reported [Member] | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Obligation to pay royalties (Ranged) | 12.00% | |||||
Ocata IP [Member] | ||||||
Finite-Lived Intangible Assets [Line Items] | ||||||
Patents and patent licenses | $ 747,000 |