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Note 11 - Fair Value Measurement (Details) - Fair Value of Goodwill (USD $)
Dec. 31, 2014
Dec. 31, 2013
Nov. 11, 2013
Goodwill [Line Items]      
Goodwill $ 596,620us-gaap_Goodwill $ 675,710us-gaap_Goodwill  
Fair Value, Inputs, Level 3 [Member] | Promasys B.V. [Member]      
Goodwill [Line Items]      
Goodwill 596,620us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= omcm_PromasysBVMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
675,710us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= omcm_PromasysBVMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
 
Promasys B.V. [Member]      
Goodwill [Line Items]      
Goodwill     $ 671,689us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= omcm_PromasysBVMember