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Long term obligations (Details 1) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Microsoft Licenses Obligations $ 759 [1] $ 0 [1]
Prepaid expenses and other current assets [Member]
   
Debt Instrument [Line Items]    
Microsoft Licenses Obligations 356  
Other assets [Member]
   
Debt Instrument [Line Items]    
Microsoft Licenses Obligations 713  
Property and equipment [Member]
   
Debt Instrument [Line Items]    
Microsoft Licenses Obligations $ 136  
[1] In March 2014, the Company renewed a vendor agreement to acquire certain additional software licenses and to receive support and subsequent software upgrades on these and other currently owned software licenses through February 2017. Pursuant to this agreement, the Company is obligated to pay approximately $0.4 million annually over the term of the agreement. The total cost, net of deferred interest (in thousands), was allocated to the following asset accounts in 2014