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Long term obligations (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Jul. 28, 2016
Jul. 28, 2015
Mar. 31, 2014
Jun. 30, 2015
Jun. 30, 2014
Mar. 31, 2017
Debt Instrument [Line Items]            
Proceeds from Long-term Capital Lease Obligations       $ 0 $ 859  
MediaMiser [Member]            
Debt Instrument [Line Items]            
Business Combination, Contingent Consideration, Liability       500    
MediaMiser [Member] | Scenario, Forecast [Member]            
Debt Instrument [Line Items]            
Business Combination, Contingent Consideration, Liability, Current           $ 4,600
Vendor Agreement [Member]            
Debt Instrument [Line Items]            
License Costs       400    
Sale Leaseback Agreement [Member]            
Debt Instrument [Line Items]            
Capital Lease Obligations Lease Period     36 months      
Sale Leaseback Transaction, Imputed Interest Rate     6.00%      
Proceeds from Long-term Capital Lease Obligations     $ 900      
Sale Leaseback Transaction, Rent Expense       $ 400    
Subsequent Event [Member] | MediaMiser [Member]            
Debt Instrument [Line Items]            
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable $ 600 $ 500