Annual report pursuant to Section 13 and 15(d)

Balance Sheet Account Details - Accrued Liabilities (Details)

v3.8.0.1
Balance Sheet Account Details - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Other Balance Sheet Details [Abstract]    
Compensation $ 4,085 $ 2,603
Legal 430 829
Amounts owed to former licensees 396 899
Royalties owed to third parties 954 942
Deferred revenue 173 0
Other 1,339 1,124
Accrued liabilities $ 7,377 $ 6,397