Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Abstract]
Computed expected income tax expense (benefit) at statutory regulatory tax rate									$ 2,967	$ 11,160	$ 6,574
Meals and entertainment									81	32	27
Tax exempt interest									(1,164)	(1,259)	(1,276)
Dividends received deduction									(133)	(141)	(107)
State taxes (net of federal benefit)									203	176	259
Other									(2)	55	(124)
Income tax expense (benefit)	$ (2,512)	$ 2,128	$ 421	$ 1,915	$ 1,641	$ 3,137	$ 2,899	$ 2,346	1,952	10,023	5,353
Current income tax (benefit) expense									1,547	11,053	5,746
Deferred income tax expense (benefit)									405	(1,030)	(393)
Income tax (benefit) expense	$ (2,512)	$ 2,128	$ 421	$ 1,915	$ 1,641	$ 3,137	$ 2,899	$ 2,346	$ 1,952	$ 10,023	$ 5,353