v2.4.1.9
Net loss per share attributable to common stockholders (Details 2) (USD $)
In Thousands, unless otherwise specified
0 Months Ended
Apr. 01, 2013
Mar. 31, 2015
Stock repurchase program    
Remaining approved amount for repurchases   $ 5,180us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Maximum    
Stock repurchase program    
Amount of common stock approved by the entity for a stock repurchase program $ 10,000wifi_AmountOfCommonStockApprovedByEntityForStockRepurchaseProgram
/ us-gaap_RangeAxis
= us-gaap_MaximumMember