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
Income Tax Expense (Benefit) [Abstract]
Expected income tax expense at federal tax rate									$ 3,490	$ 3,544
State taxes net of federal benefit									604	577
Nondeductible expenses									39	35
Nontaxable income									(345)	(340)
Other									(12)	(45)
Income tax expense (benefit), total	$ 579	$ 1,363	$ 760	$ 1,074	$ 885	$ 987	$ 909	$ 990	$ 3,776	$ 3,771
Expected income tax expense at federal tax rate									34.00%	34.00%
State taxes net of federal benefit									5.88%	5.54%
Nondeductible expenses									0.38%	0.34%
Nontaxable income									(3.36%)	(3.26%)
Other									(0.12%)	(0.43%)
Total income tax expense									36.78%	36.18%