Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)

v2.4.1.9
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Series A Preferred Stock [Member]    
Supplemental noncash disclosures:    
Number of shares converted in conversion of Preferred Stock to Common Stock (in shares) 5,973,519us-gaap_ConversionOfStockSharesConverted1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember 		 
Series B Preferred Stock [Member]    
Supplemental noncash disclosures:    
Number of shares exchanged in exchange of Preferred Stock to Common Stock (in shares) 457,519mcbc_ExchangeOfStockSharesExchanged
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember 		 
Conversion of Preferred Stock Series B to Common Stock [Member] | Common Stock [Member]    
Supplemental noncash disclosures:    
Number of shares issued in conversion of Preferred Stock to Common Stock (in shares)   50,000us-gaap_ConversionOfStockSharesIssued1
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ConversionOfPreferredStockSeriesBToCommonStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Conversion of Preferred Stock Series B to Common Stock [Member] | Preferred Stock [Member] | Series B Preferred Stock [Member]    
Supplemental noncash disclosures:    
Number of shares converted in conversion of Preferred Stock to Common Stock (in shares)   300us-gaap_ConversionOfStockSharesConverted1
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ConversionOfPreferredStockSeriesBToCommonStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_PreferredStockMember
Exchange of Preferred Stock Series A to Common Stock [Member] | Common Stock [Member]    
Supplemental noncash disclosures:    
Number of shares issued in exchange of Preferred Stock to Common Stock (in shares)   5,973,519mcbc_ExchangeOfStockSharesIssued
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ExchangeOfPreferredStockSeriesAToCommonStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Exchange of Preferred Stock Series A to Common Stock [Member] | Preferred Stock [Member] | Series A Preferred Stock [Member]    
Supplemental noncash disclosures:    
Number of shares exchanged in exchange of Preferred Stock to Common Stock (in shares)   31,290mcbc_ExchangeOfStockSharesExchanged
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ExchangeOfPreferredStockSeriesAToCommonStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_PreferredStockMember
Exchange of Preferred Stock Series B to Common Stock [Member] | Common Stock [Member]    
Supplemental noncash disclosures:    
Number of shares issued in exchange of Preferred Stock to Common Stock (in shares)   457,159mcbc_ExchangeOfStockSharesIssued
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ExchangeOfPreferredStockSeriesBToCommonStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
Exchange of Preferred Stock Series B to Common Stock [Member] | Preferred Stock [Member] | Series B Preferred Stock [Member]    
Supplemental noncash disclosures:    
Number of shares exchanged in exchange of Preferred Stock to Common Stock (in shares)   2,300mcbc_ExchangeOfStockSharesExchanged
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= mcbc_ExchangeOfPreferredStockSeriesBToCommonStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesBPreferredStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_PreferredStockMember