Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

v3.19.2
Commitments and Contingencies (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Dec. 19, 2018
Jun. 15, 2012
Jun. 30, 2019
Jun. 30, 2018
Feb. 16, 2016
Medpace Inc [Member]          
Commitments and Contingencies (Textual)          
Total project estimated to cost         $ 10,200,000
Research and development costs     $ 1,500,000 $ 1,500,000  
Project remaining cost         $ 2,800,000
Oak Ridge National Laboratory [Member]          
Commitments and Contingencies (Textual)          
Purchase of materials $ 200,000   100,000 100,000  
Goodwin [Member]          
Commitments and Contingencies (Textual)          
Research and development costs     1,400,000 $ 800,000  
Project remaining cost     $ 600,000    
License and Sponsored Research Agreement [Member] | Fred Hutchinson Cancer Research Center [Member]          
Commitments and Contingencies (Textual)          
Description of royalty payment   Royalty payments of 2% of net sales will be due to FHCRC.      
Milestone payment   $ 1,000,000