Balance Sheet Components - Accrued and Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Balance Sheet Components [Abstract]
Accrued royalties	$ 1,313		$ 3,959
Accrued employee compensation and benefits	1,072		894
Accrued Geek Points	480	[1]	561	[1]
Other accrued liabilities	359		1,247
Accrued and other liabilities	$ 3,224		$ 6,661

[1] Accrued Geek Points represents the cost of anticipated future redemptions for awards earned as of the end of the respective periods.