Loans Receivable, Classes of Loan Portfolio within the Internal Risk Grading System (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 628,950	$ 622,234
Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	260,603	285,930
Construction Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	57,166	77,478
Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	48,664	28,677
Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,657	20,188
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	195,710	174,912
Commercial Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16,811	9,296
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	19,129	24,529
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,210	1,224
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	604,912	580,276
Pass [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	251,763	268,583
Pass [Member] | Construction Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	57,166	77,168
Pass [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	47,886	26,845
Pass [Member] | Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,289	19,521
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	184,820	155,766
Pass [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16,722	9,151
Pass [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16,056	22,018
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,210	1,224
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,412	28,085
Special Mention [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,316	12,457
Special Mention [Member] | Construction Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	71
Special Mention [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	1,268
Special Mention [Member] | Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	116	368
Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,420	13,208
Special Mention [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	88	125
Special Mention [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	472	588
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	11,626	13,873
Substandard [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,524	4,890
Substandard [Member] | Construction Acquisition and Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	239
Substandard [Member] | Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	778	564
Substandard [Member] | Lines of Credit [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	252	299
Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,470	5,938
Substandard [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1	20
Substandard [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,601	1,923
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Doubtful [Member] | Construction 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	0	0
Doubtful [Member] | Commercial Non-Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
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	$ 0	$ 0