Income Tax (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Currently Payable:
Federal	$ (1,897)	$ 139	$ (1,157)	$ 1,475
State
Deferred:
Federal	4,564	3,787	12,647	11,239
State
Total Income Tax Expense	2,667	3,926	11,490	12,714
Reconciliation of Federal Statutory to Actual Tax Expense:
Federal statutory income tax at 35%	4,575	5,307	15,601	16,634
Tax-exempt interest income	(1,024)	(927)	(2,842)	(2,788)
Stock compensation	14	14	40	56
Earnings on life insurance	(213)	(240)	(672)	(954)
Tax credits	(375)	(19)	(411)	(55)
Other	(310)	(209)	(226)	(179)
Total Income Tax Expense	$ 2,667	$ 3,926	$ 11,490	$ 12,714
Federal statutory income tax rate	35.00%	35.00%	35.00%	35.00%