Balance Sheet Components (Goodwill and Intangibles) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill
Goodwill	$ 17,551		$ 14,278
Accumulated impairment losses	(14,278)		(14,278)
Goodwill	3,273
Goodwill acquired (Note 3)	3,273
Other intangible assets
Less accumulated amortization	(1,735)		(1,660)
Intangible assets, net	4,008		53
Amortization expense	74	$ 15
Estimated amortization expense
Remainder of 2016	631
2017	813
2018	612
2019	464
2020	353
Intangible assets, net	2,873
Acquired FDA non-gel product approval
Other intangible assets
Finite-lived assets, gross	1,713		$ 1,713
Customer relationships
Other intangible assets
Finite-lived assets, gross	3,200
Trade name
Other intangible assets
Finite-lived assets, gross	800
Non-compete agreement
Other intangible assets
Finite-lived assets, gross	$ 30