Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.3.1.900
Summary of Significant Accounting Policies (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
item
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Significant accounting policies      
Estimated period of customer relationship 5 years    
Changes in allowance for doubtful accounts      
Balance, beginning of year $ 76 $ 203  
Add: Provisions for doubtful accounts 176 15 $ 203
Less: Write-offs (31) (142)  
Balance, end of year $ 221 76 203
Number of segments | item 2    
Restricted certificate of deposit $ 148    
Impairment to cost investments 0 0 47
Impairments of internally developed software 0 0 0
Goodwill impairment charges 0 0 0
Advertising costs 645 675 1,028
Technology development expenses $ 10,346 $ 8,178 $ 5,998
Assets under capital leases      
Changes in allowance for doubtful accounts      
Useful lives P3Y    
Minimum | Assets under capital leases      
Changes in allowance for doubtful accounts      
Term of agreement 3 years    
Maximum | Assets under capital leases      
Changes in allowance for doubtful accounts      
Term of agreement 4 years