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Note K - Stock-Based Compensation (Details) (USD $)	3 Months Ended
Note K - Stock-Based Compensation (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Notes to Financial Statements
Stock-based compensation expense - stock options	$ 57,000	$ 67,000
Income tax benefit	0	0
Net increase in net loss	$ 57,000	$ 67,000
Per share increase in basic net loss:	$ 0.01	$ 0.01

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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