This line item represents the interest received on nonaccrual loans.

No definition available.

Name:	msl_InterestReceivedOnNonaccrualLoans
Namespace Prefix:	msl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

+ Details

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Balance Type:	credit
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- Details

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Credit Quality of Loans and Allowance for Loan Losses - Nonaccrual Loans (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	$ 51,616		$ 10,701
Interest lost on nonaccrual loans	1,300	$ 392
Interest received on nonaccrual loans	19	$ 93
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	29,171		2,642
Commercial real estate - construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	39		54
Commercial real estate - other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	19,952		6,429
Residential - construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	172		0
Residential - prime
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	1,896		1,194
Consumer - credit card
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	0		0
Consumer - other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	386		382
Lease financing receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	0		0
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans on nonaccrual status	$ 0		$ 0