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Note 3 - Cash and Cash Equivalents	12 Months Ended
Note 3 - Cash and Cash Equivalents	Dec. 31, 2017
Cash And Cash Equivalents [Abstract]
Cash and Cash Equivalents	Note 3 – Cash and Cash Equivalents Included in cash and cash equivalents are reserves in the form of deposits with the Federal Reserve Bank of Philadelphia. As of December 31, 2017 and 2016 QNB was not required to maintain reserves with the Federal Reserve Bank of Philadelphia.