Office Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of office premises and equipment
Office premises and equipment, gross	$ 22,413	$ 22,443
Less accumulated depreciation and amortization	14,308	13,798
Office premises and equipment, net	8,105	8,645
Land [Member]
Summary of office premises and equipment
Office premises and equipment, gross	1,948	1,948
Buildings and improvements [Member]
Summary of office premises and equipment
Office premises and equipment, gross	11,870	11,656
Furniture, fixtures and equipment [Member]
Summary of office premises and equipment
Office premises and equipment, gross	$ 8,595	$ 8,839

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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