Loans Receivable, Classes of Loan Portfolio within the Internal Risk Grading System (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 702,582	$ 739,740
Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	279,163	295,876
Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	75,274	99,122
Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	54,863	59,649
Lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30,455	34,278
Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	218,231	203,010
Commercial non-real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,212	5,599
Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	37,626	41,309
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	758	897
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	579,014	618,455
Pass [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	234,694	259,359
Pass [Member] | Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	43,907	62,054
Pass [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	40,525	44,443
Pass [Member] | Lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	23,906	27,067
Pass [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	197,411	180,635
Pass [Member] | Commercial non-real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,311	5,567
Pass [Member] | Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	33,557	38,456
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	703	874
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,996	33,176
Special Mention [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,070	8,624
Special Mention [Member] | Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,717	6,521
Special Mention [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,240	4,909
Special Mention [Member] | Lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,708	1,708
Special Mention [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,580	10,702
Special Mention [Member] | Commercial non-real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Special Mention [Member] | Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	681	712
Special Mention [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	87,145	87,877
Substandard [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	33,145	27,689
Substandard [Member] | Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,650	30,547
Substandard [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,098	10,297
Substandard [Member] | Lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,841	5,503
Substandard [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,136	11,673
Substandard [Member] | Commercial non-real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,875	4
Substandard [Member] | Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,388	2,141
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12	23
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	427	232
Doubtful [Member] | Residential mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	254	204
Doubtful [Member] | Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Lines of credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Commercial real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	104	0
Doubtful [Member] | Commercial non-real estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	26	28
Doubtful [Member] | Home equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 43	$ 0