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Note 10 - Other Borrowings | 12 Months Ended
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Dec. 31, 2012
Other Borrowings [Text Block] | 10. OTHER BORROWINGS Other borrowings consist of advances from the FHLB and subordinated debt as follows:
(Dollar amounts in thousands) |  |  | Maturity range |  |  | Weighted- average |  |  | Stated interest rate range |  |  |  |  |  |  |
Description |  |  | from |  |  | to |  |  | interest rate |  |  | from |  |  | to |  |  | 2012 |  |  | 2011 |
Fixed rate amortizing |  |  | 01/23/13 |  |  | 09/04/28 |  |  |  | 3.99 | % |  |  | 2.70 | % |  |  | 4.48 | % |  | $ | 4,722 |  |  | $ | 6,576 |
Convertible |  |  | 10/09/12 |  |  | 10/09/12 |  |  |  | 4.14 |  |  |  | 4.14 |  |  |  | 4.14 |  |  |  | - |  |  |  | 2,007 |
Junior subordinated debt |  |  | 12/21/37 |  |  | 12/21/37 |  |  |  | 2.50 |  |  |  | 1.98 |  |  |  | 6.58 |  |  |  | 8,248 |  |  |  | 8,248 |
Total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 12,970 |  |  | $ | 16,831 |
The scheduled maturities of other borrowings are as follows:
(Dollar amounts in thousands) |  |  |  |  |  |
Year Ending December 31, |  | Amount |  |  | Average Rate |
2013 |  | $ | 1,362 |  |  |  | 3.95 | %
2014 |  |  | 984 |  |  |  | 3.99 |
2015 |  |  | 685 |  |  |  | 4.01 |
2016 |  |  | 502 |  |  |  | 4.00 |
2017 |  |  | 373 |  |  |  | 4.00 |
Beyond 2017 |  |  | 9,065 |  |  |  | 2.17 |
Total |  | $ | 12,970 |  |  |  | 2.63 | %
The Company entered into a ten-year “Convertible Select” fixed commitment advance arrangement with the FHLB. Rates may be reset at the FHLB’s discretion on a quarterly basis based on the three-month LIBOR rate. At each rate change, the Company may exercise a put option and satisfy the obligation without penalty. Fixed rate amortizing advances from the FHLB require monthly principal and interest payments and an annual 20 percent pay-down of outstanding principal. Monthly principal and interest payments are adjusted after each 20 percent pay-down. Under the terms of a blanket agreement, FHLB borrowings are secured by certain qualifying assets of the Company which consist principally of first mortgage loans or mortgage-backed securities. Under this credit arrangement, the Company has a remaining borrowing capacity of approximately $68.9 million at December 31, 2012. In December 2006, the Company formed a special purpose entity (“Entity”) to issue $8,000,000 of floating rate, obligated mandatorily redeemable securities, and $248,000 in common securities as part of a pooled offering. The rate adjusts quarterly, equal to LIBOR plus 1.67 percent. The Entity may redeem them, in whole or in part, at face value. The Company borrowed the proceeds of the issuance from the Entity in December 2006 in the form of an $8,248,000 note payable, which is included in the liabilities section of the Company’s Consolidated Balance Sheet.

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- Definition Other borrowings. + References No definition available. + Details
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Namespace Prefix: | mbcn_
Data Type: | nonnum:textBlockItemType
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Period Type: | duration