Consolidated Statements of Condition (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Held to maturity securities, fair value	$ 17,859,000	$ 10,686,000	$ 7,225,000
Time deposits, minimum	76,573,000us-gaap_TimeDeposits
Common stock, par value	$ 1	$ 1	$ 1
Common stock, shares authorized	15,000,000us-gaap_CommonStockSharesAuthorized	15,000,000us-gaap_CommonStockSharesAuthorized	15,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	5,123,186us-gaap_CommonStockSharesIssued	5,123,186us-gaap_CommonStockSharesIssued	5,136,918us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	5,123,186us-gaap_CommonStockSharesOutstanding	5,123,186us-gaap_CommonStockSharesOutstanding	5,136,918us-gaap_CommonStockSharesOutstanding
Minimum [Member]
Time deposits, minimum	$ 100,000	$ 100,000	$ 100,000

Face amount or stated value per share of common stock.

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