XML 97 R90.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loan Servicing (Unpaid Principal Balances of Loans Serviced) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Servicing Assets at Fair Value [Line Items]    
Unpaid principle balance of loans serviced $ 326,246mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers $ 336,963mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
Freddie Mac [Member]    
Servicing Assets at Fair Value [Line Items]    
Unpaid principle balance of loans serviced 295,589mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FreddieMacMember		 303,313mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FreddieMacMember
Fannie Mae [Member]    
Servicing Assets at Fair Value [Line Items]    
Unpaid principle balance of loans serviced 16,024mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FannieMaeMember		 20,881mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FannieMaeMember
Federal Home Loan Bank [Member]    
Servicing Assets at Fair Value [Line Items]    
Unpaid principle balance of loans serviced 12,963mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FederalHomeLoanBankMember		 10,958mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_FederalHomeLoanBankMember
Other investors [Member]    
Servicing Assets at Fair Value [Line Items]    
Unpaid principle balance of loans serviced $ 1,670mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_OtherInvesteesMember		 $ 1,811mfsf_UnpaidPrincipalBalanceOfLoansServicedForOthers
/ mfsf_RecognitionOfPaymentServicesProviderAxis
= mfsf_OtherInvesteesMember