Securities Sold Under Repurchase Agreements (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Securities Sold Under Repurchase Agreements (Textual)
Purchases of federal funds	$ 23,000	$ 15,000
Federal funds line drawn upon	0	0
Retail repurchase agreements total amount	10,500
Repurchase agreements securities	10,532	12,406
Mortgage-backed securities	9,500	11,000
Retail Repurchase Agreements [Member]
Securities Sold Under Repurchase Agreements (Textual)
Maximum amount of outstanding agreements at any month-end	20,600	20,300
Monthly average of such agreements totaled	$ 15,000	$ 17,100
Short-term borrowings mature	within one month.	within one month.
Repurchase agreements securities	$ 5,100	$ 4,900
Mortgage-backed securities maturity, basis of allocation	This collateral has maturities from 2018 through 2042.

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Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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This item represents disclosure of the basis (methodology and assumptions) for allocating securities which do not have a single contractual maturity date, such as mortgage-backed securities, over several maturity groupings. Such securities are categorized as held-to-maturity.

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Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as held-to-maturity.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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