Note K - Stock-Based Compensation - Stock Option Activity (Details) (USD $)	3 Months Ended
Mar. 31, 2013
Notes to Financial Statements
Outstanding at January 1, 2013, number of shares	1,654,600
Outstanding at January 1, 2013, weighted average exercise price	$ 3.08
Granted number of shares	692,000
Granted weighted average exercise price	$ 0.90
Exercised number of shares	0
Exercised weighted average exercise price	$ 0
Expired number of shares	(22,250)
Expired weighted average exercise price	$ 4.23
Outstanding at March 31, 2013, number of shares	2,324,350
Outstanding at March 31, 2013, weighted average exercise price	$ 3.62
Exercisable at March 31, 2013, number of shares	1,071,750
Exercisable at March 31, 2013, weighted average exercise price	$ 3.62

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Net number of share options (or share units) granted during the period.

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The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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