Income Taxes - Schedule of Deferred Tax Assets (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Depreciation	$ 116,000	$ 113,000
Allowance for bad debts	393,000	211,000
Net operating loss carry-forwards	24,916,000	23,628,000
Stock option expense	1,272,000	1,358,000
Research and other credits	1,210,000	1,154,000
Other temporary differences	15,000	15,000
Total gross deferred tax assets	27,922,000	26,479,000
Less valuation allowance	(27,922,000)	(26,479,000)
Deferred Tax Assets, Net of Valuation Allowance

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 operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit 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 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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