Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Computed expected income tax expense (benefit) at statutory regulatory tax rate									$ 6,574	$ 3,878	$ 1,181
Meals and entertainment									27	25	28
Tax exempt interest									(1,276)	(1,314)	(1,631)
Dividends received deduction									(107)	(101)	(111)
State taxes (net of federal benefit)									259	276	298
Other									(124)	71	(239)
Income tax expense (benefit)	1,833	1,265	391	1,864	1,334	3,198	(2,166)	469	5,353	2,835	(474)
Current income tax (benefit) expense									5,746	3,092	2,377
Deferred income tax expense (benefit)									(393)	(257)	(2,851)
Income tax (benefit) expense	$ 1,833	$ 1,265	$ 391	$ 1,864	$ 1,334	$ 3,198	$ (2,166)	$ 469	$ 5,353	$ 2,835	$ (474)