Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Service Agreements (Details)

v3.8.0.1
Commitments and Contingencies - Service Agreements (Details) - USD ($)
12 Months Ended
Aug. 06, 2015
Dec. 31, 2017
Dec. 31, 2011
Tissue Processing Agreement [Member]      
Service Agreements      
Term of agreement 5 years    
Commitment extension period   18 months  
Annual license fee amount   $ 1,400,000  
Master Services Agreement For Clinical Research and Related Services [Member]      
Service Agreements      
Company is required to pay execution of the agreement     $ 151,318