Summary of Significant Accounting Policies - Acc Liab (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Other Accrued Liabilities
Accrued contract payments	$ 4,202	$ 5,830
Accrued clinical trial costs	3,096	1,735
Accrued professional services	1,028	788
Accrued employee benefits	640	567
Accrued public reporting charges	192	192
Other current accrued liabilities	555	1,329
Total	$ 9,713	$ 10,441