Balance Sheet Accounts Balance Sheet Accounts - Lease Related Disclosures (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Balance Sheet Related Disclosures [Abstract]
Right of Use (ROU) Asset, net included with Other assets	$ 2,871
Lease liability included with Other long-term liabilities	2,871
Q1 2019 Depreciation of ROU Asset	261
Operating cash flows from operating leases	287
Operating lease costs	$ 287
Weighted-average remaining lease term - operating leases	2 years 9 months
Weighted-average discount rate - operating leases	6.40%