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Note L - Stockholders' Equity (Detail) - Compensation Costs Related to the Company’s Stock-based Compensation (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cost of Sales [Member]
Stock-Based Compensation Costs	$ 26	$ (124)	$ 146
Selling, General and Administrative Expenses [Member]
Stock-Based Compensation Costs	1,005	975	1,592
Operating Income Loss [Member]
Stock-Based Compensation Costs	1,031	851	1,738
Income Tax Expense [Member]
Stock-Based Compensation Costs	(3)	67	(114)
Net Income Loss [Member]
Stock-Based Compensation Costs	$ 1,028	$ 918	$ 1,624

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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