Loans (Details 5) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Loans receivable, consumer credit exposure	$ 147,297	$ 118,458
Performing
Loans receivable, consumer credit exposure	144,325	115,786
Impaired
Loans receivable, consumer credit exposure	2,972	2,672
Residential Prime
Loans receivable, consumer credit exposure	105,579	78,114
Residential Prime | Performing
Loans receivable, consumer credit exposure	103,292	75,923
Residential Prime | Impaired
Loans receivable, consumer credit exposure	2,287	2,191
Residential Heloc
Loans receivable, consumer credit exposure	21,756	23,193
Residential Heloc | Performing
Loans receivable, consumer credit exposure	21,250	22,925
Residential Heloc | Impaired
Loans receivable, consumer credit exposure	506	268
Construction and Development
Loans receivable, consumer credit exposure	15,247	13,419
Construction and Development | Performing
Loans receivable, consumer credit exposure	15,094	13,275
Construction and Development | Impaired
Loans receivable, consumer credit exposure	153	144
Consumer Loan
Loans receivable, consumer credit exposure	4,715	3,732
Consumer Loan | Performing
Loans receivable, consumer credit exposure	4,689	3,663
Consumer Loan | Impaired
Loans receivable, consumer credit exposure	$ 26	$ 69