14. INCOME TAXES (Details-Deferred tax assets and liabilities) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Charitable contributions	$ 4,128	$ 4,128
Reserve for bad debt	20,684	30,006
Stock options	4,593,382	4,411,279
Inventory Adjustment	0us-gaap_DeferredTaxAssetsInventory	3,326us-gaap_DeferredTaxAssetsInventory
Other	15,702us-gaap_DeferredTaxAssetsOther	7,502us-gaap_DeferredTaxAssetsOther
Net operating loss carryforward	7,485,682	6,183,779
Total gross deferred tax assets	12,119,578us-gaap_DeferredTaxAssetsGross	10,640,020us-gaap_DeferredTaxAssetsGross
Less: Deferred tax asset valuation allowance	(11,999,461)	(10,528,703)
Total net deferred tax assets	120,117us-gaap_DeferredTaxAssetsNet	111,317us-gaap_DeferredTaxAssetsNet
Deferred tax liabilities:
Accrued salaries	(96,704)	(88,259)
Accrued vacation	(13,848)	(4,924)
Depreciation	(9,565)	(18,134)
Total deferred tax liabilities	(120,117)us-gaap_DeferredIncomeTaxLiabilities	(111,317)us-gaap_DeferredIncomeTaxLiabilities
Total net deferred taxes	$ 0us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 0us-gaap_DeferredTaxAssetsLiabilitiesNet

Deferred tax liabilities - accrued salaries

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Deferred tax liabilities - accrued vacation

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Amount of deferred tax liability attributable to taxable temporary differences.

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

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

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

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