Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Benefit for Income Taxes Differs from Amount Obtained by Applying Federal Statutory Income Tax Rate to Loss before Benefit for Income Taxes

The benefit for income taxes differs from the amount obtained by applying the federal statutory income tax rate to loss before benefit for income taxes for 2015, 2014 and 2013 as follows:

	2015			2014			2013
Tax benefit computed at federal statutory rate		34.0	%		34.0	%		34.0	%
Increase (decrease) in taxes due to:
Change in valuation allowance		(30.0	)		(39.8	)		(39.8	)
Permanent differences (stock options, warrant fair value, other)		(9.8	)		—			—
State taxes, net of federal benefit		5.8			5.8			5.8
		—	%		—	%		—	%

Significant Components of Deferred Tax Assets (Liabilities)

The significant components of deferred tax assets (liabilities) at December 31 are as follows:

	2015			2014
Loss carryforwards	$	15,208,000		$	11,490,000
Depreciation		1,084,000			1,490,000
Tax credits		574,000			388,000
Inventory		308,000			292,000
Other		101,000			280,000
Less: valuation allowance		(17,275,000	)		(13,940,000	)
	$	—		$	—