2. Significant Balance Sheet Components

Property and Equipment—Property and equipment at December 31, 2016 and 2015 consisted of the following (in thousands):


	As of December 31,
	2016		2015
Computers and appliances	$	9,754	$	7,908
Purchased software		2,297		2,220
Furniture and fixtures		1,477		1,338
Leasehold improvements		2,985		2,887
Total property and equipment		16,513		14,353
Accumulated depreciation and amortization		(11,010)		(7,781)
Total property and equipment—net	$	5,503	$	6,572

Accrued Expenses—Accrued expenses at December 31, 2016 and 2015 consisted of the following (in thousands):


	As of December 31,
	2016		2015
Accrued commissions	$	5,908	$	4,181
Accrued stock-settled bonus		6,608		4,714
Accrued vacation		611		512
Employee Stock Purchase Plan liability		1,811		2,329
Other accrued payroll-related expenses		3,085		2,483
Other accrued liabilities		3,651		4,977
Total accrued expenses	$	21,674	$	19,196

Deferred Revenue—Current and noncurrent deferred revenue at December 31, 2016 and 2015 consisted of the following (in thousands):


	As of December 31,
	2016		2015
Perpetual license	$	404	$	400
Subscription		35,495		25,013
Software support		50,117		42,254
Professional services		2,060		2,208
Total current and noncurrent deferred revenue	$	88,076	$	69,875