Subsequent Event (Details) - Subsequent Event [Member] - License Agreement [Member] $ in Thousands	1 Months Ended
	Jul. 31, 2017 USD ($)
Subsequent Event [Line Items]
Upfront fee payable	$ 1,000
Clinical Development Milestones [Member]
Subsequent Event [Line Items]
Future potential payments	2,000
Regulatory Milestone [Member] | Maximum [Member]
Subsequent Event [Line Items]
Future potential payments	7,000
Single-Digit Percentage Royalty on Net Sales [Member]
Subsequent Event [Line Items]
Future potential payments	$ 1,000