Property Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property Plant and Equipment Gross	$ 12,363	$ 12,596
Less accumulated depreciation and amortization	(11,175)	(11,283)
Property Plant and Equipment Net	1,188	1,313
Warehouse Equipment
Property, Plant and Equipment [Line Items]
Property Plant and Equipment Gross	5,441	5,546
Office Equipment
Property, Plant and Equipment [Line Items]
Property Plant and Equipment Gross	5,241	5,285
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property Plant and Equipment Gross	1,566	1,635
Automobiles
Property, Plant and Equipment [Line Items]
Property Plant and Equipment Gross	$ 115	$ 130

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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