Consolidated Statements of Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Held-to-maturity Securities, Fair Value	$ 152,008	$ 62,431
Perferred Stock, Liquidation Value Per Share	$ 1,000	$ 1,000
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Liquidation Preference, Value	$ 11,250	$ 11,250
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Shares, Issued	18,477,412	18,477,412
Common Stock, Shares, Outstanding	16,369,012	16,347,915
Treasury Stock, Shares	2,108,400	2,129,497
Series B Preferred Stock [Member]
Preferred Stock, Shares Issued	11,250	11,250
Preferred Stock, Shares Outstanding	11,250	11,250