Annual report pursuant to Section 13 and 15(d)

The Company and Summary of Significant Accounting Policies (Details)

v2.4.1.9
The Company and Summary of Significant Accounting Policies (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Antidilitive securities excluded from calculation 13,160,597us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 11,010,607us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Employee options [Member]    
Antidilitive securities excluded from calculation 5,399,320us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_StockOptionMember 		5,672,464us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_StockOptionMember
Restricted Stock Units [Member]    
Antidilitive securities excluded from calculation 591,436us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockUnitsRSUMember 		  
NonEmployee Warrants [Member]    
Antidilitive securities excluded from calculation 150,001us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= MFON_NonEmployeeWarrantsMember 		150,556us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= MFON_NonEmployeeWarrantsMember
NonEmployee Warrants [Member]    
Antidilitive securities excluded from calculation 7,019,840us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember 		5,187,587us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember