Bank Premises and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of Bank premises and equipment
Cost	$ 69,375	$ 69,991
Accumulated Depreciation & Amortization	(34,910)	(35,764)
Net Carrying Value	34,465	34,227
Premises [Member]
Summary of Bank premises and equipment
Cost	48,064	48,691
Accumulated Depreciation & Amortization	(19,051)	(18,710)
Net Carrying Value	29,013	29,981
Furniture and equipment [Member]
Summary of Bank premises and equipment
Cost	21,311	21,300
Accumulated Depreciation & Amortization	(15,859)	(17,054)
Net Carrying Value	$ 5,452	$ 4,246

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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