Note 4 - Balance Sheet Components

9 Months Ended

Sep. 30, 2014

Disclosure Text Block Supplement [Abstract]

Supplemental Balance Sheet Disclosures [Text Block]

4. Balance Sheet Components

Allowance for Doubtful Accounts

Activity related to the allowance for doubtful accounts consisted of the following (in thousands):

	Nine Months Ended September 30, 2014			Year Ended December 31, 2013
Balance, beginning of period	$	20		$	9
Additions to the allowance		123			22
Write-offs of bad debt		(28	)		(11	)
Recovery of previously reserved items		(17	)		—
Balance, end of period	$	98		$	20

Prepaid Expenses and Other Current Assets

           Prepaid expenses and other current assets consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Prepaid expenses	$	2,221	$	1,607
Refundable tax		271		510
Deferred commissions		815		593
Gain on unsettled foreign currency forward contracts		191		1
Other current assets		1,855		818
Prepaid expenses and other current assets	$	5,353	$	3,529

Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):

	September 30, 2014			December 31, 2013
Computer equipment	$	25,268		$	20,217
Furniture, fixtures, and equipment		720			702
Leasehold improvements		2,456			1,760
Total property and equipment		28,444			22,679
Less accumulated depreciation and amortization		(19,012	)		(16,382	)
Property and equipment, net	$	9,432		$	6,297

Depreciation expense was $1.1 million and $0.6 million for the three months ended September 30, 2014 and 2013, and $2.6 million and $1.9 million for the nine months ended September 30, 2014 and 2013, respectively.

Other Assets

Other assets consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Deferred offering costs	$	3,787	$	—
Deferred costs and commissions		707		365
Facility deposits for operating leases		705		683
Others		34		64
Other assets	$	5,233	$	1,112

Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss, net of tax, are as follows (in thousands):

	September 30, 2014		December 31, 2013
Foreign currency translation adjustments	$	1,492	$	1,462
Net unrealized loss on foreign currency contracts designated as cash flow hedges		148		268
Total accumulated other comprehensive loss	$	1,640	$	1,730