Loans (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Consumer Credit Exposure
Loans receivable, consumer credit exposure	$ 169,202	$ 166,501
Performing [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	165,974	164,355
Impaired [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	3,228	2,146
Residential Prime [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	128,347	123,980
Residential Prime [Member] | Performing [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	126,035	122,408
Residential Prime [Member] | Impaired [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	2,312	1,572
Residential - construction and development [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	13,711	18,277
Residential - construction and development [Member] | Performing [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	13,220	18,230
Residential - construction and development [Member] | Impaired [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	491	47
Residential HELOC [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	23,517	20,677
Residential HELOC [Member] | Performing [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	23,117	20,167
Residential HELOC [Member] | Impaired [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	400	510
Consumer [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	3,627	3,567
Consumer [Member] | Performing [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	3,602	3,550
Consumer [Member] | Impaired [Member]
Consumer Credit Exposure
Loans receivable, consumer credit exposure	$ 25	$ 17