Income Taxes Temporary Differences (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Allowance for loan losses	$ 4,753	$ 4,489
Available-for-sale investment securities	0	0
Deferred compensation	1,014	984
Supplemental retirement	365	370
Core deposit premium amortization	192	120
Interest on non-accrual loans	93	155
Other-than-temporary impairment on securities	1,610	1,662
Expense from other real estate properties held for sale	46	492
Deferred loan costs	96	0
Other	346	148
Total gross deferred tax assets	8,515	8,420
Deferred loan costs	0	82
Goodwill	2,534	2,069
Prepaid expenses	260	187
FHLB stock dividend	285	334
Depreciation	786	790
Purchase accounting	168	274
Accumulated accretion	87	59
Available-for-sale investment securities	2,903	2,012
Total gross deferred tax liabilities	7,023	5,807
Net deferred tax assets	$ 1,492	$ 2,613