The Company and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
The Company and Summary of Significant Accounting Policies
Lease liability	$ 3,014
Operating lease right-of-use assets	2,938
Total assets	223,349		$ 223,524
Accrued liabilities	11,681		15,371
Total current liabilities	27,526		28,709
Long-term portion of lease obligations	2,695
Total liabilities	30,587		28,992
Total liabilities and stockholders’ equity	223,349		223,524
As reported
The Company and Summary of Significant Accounting Policies
Total assets			223,524
Accrued liabilities			15,371
Total current liabilities			28,709
Total liabilities			28,992
Total liabilities and stockholders’ equity			$ 223,524
ASU 2016-02
The Company and Summary of Significant Accounting Policies
Lease liability		$ 1,100
Operating lease right-of-use assets		1,086
Total assets		224,610
Accrued liabilities		15,499
Total current liabilities		28,837
Long-term portion of lease obligations		958
Total liabilities		30,078
Total liabilities and stockholders’ equity		224,610
ASU 2016-02 | Adjustment.
The Company and Summary of Significant Accounting Policies
Lease liability	1,100
Operating lease right-of-use assets	$ 1,100	1,086
Total assets		1,086
Accrued liabilities		128
Total current liabilities		128
Long-term portion of lease obligations		958
Total liabilities		1,086
Total liabilities and stockholders’ equity		$ 1,086