Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

v3.10.0.1
Commitments and Contingencies (Details Textual)
$ in Thousands
6 Months Ended
Jun. 30, 2018
USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Payments Due By Period, Less than one year $ 50
Contractual Obligation 936
Royalty Agreement Terms [Member]  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Payments Due By Period, Less than one year $ 50
Royalty Agreement Terms [Member] | Net sales [Member]  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty Percentage 1.00%
Royalty Agreement Terms [Member] | License fees [Member]  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty Percentage 21.00%
Royalty Agreement Terms [Member] | Sub-licensee net sales [Member]  
Research and Development Arrangement, Contract to Perform for Others [Line Items]  
Royalty Percentage 1.00%