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Commitments and contingencies (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Commitments and Contingencies [Line Items]    
Estimated Litigation Liability $ 8,000,000us-gaap_LitigationReserve  
Litigation Settlement, Expense 100,000us-gaap_LitigationSettlementExpense  
Property, Plant and Equipment, Net 5,585,000us-gaap_PropertyPlantAndEquipmentNet 5,915,000us-gaap_PropertyPlantAndEquipmentNet
Liens Under Foreign Tax Authority [Member]    
Commitments and Contingencies [Line Items]    
Property, Plant and Equipment, Net $ 600,000us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_IncomeTaxAuthorityAxis
= inod_LiensUnderForeignTaxAuthorityMember