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Long term obligations (Details Textual)
CAD in Millions, $ in Millions
1 Months Ended 9 Months Ended
Mar. 31, 2014
USD ($)
Sep. 30, 2016
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2018
CAD
Mar. 31, 2017
USD ($)
Mar. 31, 2017
CAD
Sep. 30, 2016
CAD
MediaMiser [Member]              
Debt Instrument [Line Items]              
Business Combination, Contingent Consideration, Liability   $ 3.8         CAD 5
Supplemental Deferred Purchase Price, Percentage   70.00%          
MediaMiser [Member] | Scenario, Forecast [Member]              
Debt Instrument [Line Items]              
Business Combination, Contingent Consideration, Liability     $ 1.5 CAD 2 $ 1.5 CAD 2  
Vendor Agreement [Member]              
Debt Instrument [Line Items]              
License Costs $ 0.4            
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 $ 0.9            
Sale Leaseback Transaction, Rent Expense   $ 0.8