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Note 2 - Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2012
Cash and Cash Equivalents Disclosure [Text Block]
2.     Cash and Cash Equivalents

       The Company manages its cash and cash equivalents, which consist of cash on hand, amounts due from banks, federal funds sold, and short-term investments with original maturity of three months or less, based upon the Company’s operating, investment, and financing activities.  For the purpose of reporting cash flows, these same accounts are included in cash and cash equivalents.

       The Company is required to maintain reserves with the Federal Reserve Bank.  Reserve requirements are based on a percentage of deposit liabilities.  The average reserve balances required were $12.9 million for 2012 and $12.2 million for 2011.    There were no federal funds sold in 2012 or in 2011.