INCOME TAXES (Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred Tax Asset:
Net operating loss carryforward	$ 46,231	$ 42,950
Research and development credit carryforwards	918	951
Deferred revenue	207us-gaap_DeferredTaxAssetsDeferredIncome	174us-gaap_DeferredTaxAssetsDeferredIncome
Inventory	200us-gaap_DeferredTaxAssetsInventory	275us-gaap_DeferredTaxAssetsInventory
Allowance for bad debt	2,738	1,279
Other	1,545us-gaap_DeferredTaxAssetsOther	718us-gaap_DeferredTaxAssetsOther
Deferred Tax Assets, Gross	51,839us-gaap_DeferredTaxAssetsGross	46,347us-gaap_DeferredTaxAssetsGross
Less valuation allowance	(51,751)	(46,088)
Deferred Tax Asset	88us-gaap_DeferredTaxAssetsNet	259us-gaap_DeferredTaxAssetsNet
Deferred Tax Liability:
Goodwill	631	0
Foreign earnings	0	25
Property and equipment	88	186
Deferred Tax Liability	719us-gaap_DeferredIncomeTaxLiabilities	211us-gaap_DeferredIncomeTaxLiabilities
Net Deferred Asset (Liability)	$ (631)us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 48us-gaap_DeferredTaxAssetsLiabilitiesNet

Amount of deferred tax liability attributable to taxable temporary differences.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Deferred Tax Liability

-URI http://asc.fasb.org/extlink&oid=6510232

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net 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 not separately disclosed.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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

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

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

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Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.

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