Balance Sheet Parenthetical (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Held-to-Maturity Securities, at Fair Value	$ 322,335	$ 302,305	$ 259,562
Preferred Stock, Par Value, in Dollars Per Share	$ 5	$ 5	$ 5
Preferred Stock, Shares Authorized, in Shares	1,000,000	1,000,000	1,000,000
Common Stock, Par Value, in Dollars Per Share	$ 1	$ 1	$ 1
Common Stock, Shares Authorized, in Shares	20,000,000	20,000,000	20,000,000
Common Stock, Shares Issued, in Shares	16,744,486	16,744,486	16,416,163
Unallocated ESOP Shares, in Shares	79,763	87,641	95,172
Treasury Stock, in Shares	4,315,156	4,296,723	4,310,578