Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses and Recorded Investment in Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 7,642	$ 6,007	$ 7,298	$ 5,875
Charge Offs	(2,553)	(488)	(2,689)	(983)
Recoveries	9	8	39	15
Provision for loan losses	700	420	1,150	1,040
Allowance at end of period	5,798	5,947	5,798	5,947
Ending balance individually evaluated for impairment	15	802	15	802
Ending balance collectively evaluated for impairment	5,783	5,145	5,783	5,145
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	1,077	1,353	1,069	1,323
Charge Offs	(17)	(26)	(17)	(113)
Recoveries	1	2	2	4
Provision for loan losses	(85)	(244)	(78)	(129)
Allowance at end of period	976	1,085	976	1,085
Ending balance individually evaluated for impairment	0	0	0	0
Ending balance collectively evaluated for impairment	976	1,085	976	1,085
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	5,758	3,994	5,506	3,890
Charge Offs	(2,513)	(434)	(2,642)	(827)
Recoveries	0	0	2	0
Provision for loan losses	946	592	1,325	1,089
Allowance at end of period	4,191	4,152	4,191	4,152
Ending balance individually evaluated for impairment	15	802	15	802
Ending balance collectively evaluated for impairment	4,176	3,350	4,176	3,350
Construction Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	109	115	90	222
Charge Offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	(50)	(18)	(31)	(125)
Allowance at end of period	59	97	59	97
Ending balance individually evaluated for impairment	0	0	0	0
Ending balance collectively evaluated for impairment	59	97	59	97
Commercial, financial and agricultural loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	446	353	397	256
Charge Offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	(153)	52	(104)	149
Allowance at end of period	293	405	293	405
Ending balance individually evaluated for impairment	0	0	0	0
Ending balance collectively evaluated for impairment	293	405	293	405
Consumer loans to individuals [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	252	192	236	184
Charge Offs	(23)	(28)	(30)	(43)
Recoveries	8	6	35	11
Provision for loan losses	42	38	38	56
Allowance at end of period	279	208	279	208
Ending balance individually evaluated for impairment	0	0	0	0
Ending balance collectively evaluated for impairment	$ 279	$ 208	$ 279	$ 208