Note 8 - Income Taxes (Detail) - Summary of deferred income tax assets and liabilities: (USD $)	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts	$ 39,310	$ 30,729
Capitalized inventory costs	200,017	147,135
Warrants and stock-based compensation	54,042	54,042
Accrued expenses, reserves, and other	110,151	103,387
Total deferred income tax assets	403,520	335,293
Property and equipment depreciation	689,893	758,024
Goodwill and other intangible assets amortization	170,674	154,847
Total deferred income tax liabilities	860,567	912,871
Net deferred tax asset (liability)	$ (457,047)	$ (577,578)

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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- Definition

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

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- Definition

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

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other reserves and accruals not separately disclosed.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill.

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- Definition

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

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