Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule of property and equipment
Property and equipment, Gross	$ 24,090	$ 22,931
Accumulated depreciation	(16,379)	(15,303)
Property and equipment, net	7,711	7,628
Land and office building [Member]
Schedule of property and equipment
Property and equipment, Gross	7,669	7,578
Furniture and equipment [Member]
Schedule of property and equipment
Property and equipment, Gross	6,920	6,552
Software [Member]
Schedule of property and equipment
Property and equipment, Gross	9,420	8,720
Automobiles [Member]
Schedule of property and equipment
Property and equipment, Gross	$ 81	$ 81

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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