Note P - Income Taxes (Detail) - Components of Deferred Taxes (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current asset:
Accrued compensation	$ 128,000	$ 119,000
Accounts receivable allowance	8,000	156,000
Non-current asset (liability):
Stock-based compensation	336,000
Basis differences in fixed assets	(10,000)	(21,000)
Basis differences in intangible assets	(77,000)	31,000
Net operating loss carryforwards	16,143,000	15,912,000
Valuation allowances	$ (16,528,000)	$ (16,197,000)

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

+ References+ Details

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.

+ References+ Details

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References+ Details

- Definition

Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

+ References+ Details