XML 11 R39.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 2 - Business Combination (Details) - Acquired Loans Fair Value (Firstbank Corporation [Member], USD $) In Thousands, unless otherwise specified | Jun. 01, 2014
--- | ---
Commercial Loans: |
Loans | $ 943,662,000
Commercial and Industrial [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 878,000
Commercial and Industrial [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 163,316,000
Commercial and Industrial [Member] |
Commercial Loans: |
Loans | 164,194,000
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 12,973,000
Commercial Real Estate Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 378,016,000
Commercial Real Estate Portfolio Segment [Member] |
Commercial Loans: |
Loans | 390,989,000
Commercial Real Estate Construction Financing Receivable [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 1,289,000
Commercial Real Estate Construction Financing Receivable [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 33,726,000
Commercial Real Estate Construction Financing Receivable [Member] |
Commercial Loans: |
Loans | 35,015,000
Commercial Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 15,140,000
Commercial Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 575,058,000
Commercial Portfolio Segment [Member] |
Commercial Loans: |
Loans | 590,198,000
Residential Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 9,694,000
Residential Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 216,653,000
Residential Portfolio Segment [Member] |
Commercial Loans: |
Loans | 226,347,000
Consumer Installment Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 167,000
Consumer Installment Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 61,657,000
Consumer Installment Portfolio Segment [Member] |
Commercial Loans: |
Loans | 61,824,000
Consumer Home Equity Line Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 288,000
Consumer Home Equity Line Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 52,054,000
Consumer Home Equity Line Portfolio Segment [Member] |
Commercial Loans: |
Loans | 52,342,000
Consumer Construction Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 76,000
Consumer Construction Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 12,875,000
Consumer Construction Portfolio Segment [Member] |
Commercial Loans: |
Loans | 12,951,000
Consumer Portfolio Segment [Member] | Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 10,225,000
Consumer Portfolio Segment [Member] | Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | 343,239,000
Consumer Portfolio Segment [Member] |
Commercial Loans: |
Loans | 353,464,000
Nonperforming Financing Receivable [Member] |
Commercial Loans: |
Loans | 25,365,000
Performing Financing Receivable [Member] |
Commercial Loans: |
Loans | $ 918,297,000

X
- Details
Name: | mbwm_CommercialLoansAbstract
Namespace Prefix: | mbwm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationAcquiredReceivablesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant