Income Taxes (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deferred Tax Assets, Gross [Abstract]
Excess of financial accounting over tax depreciation	$ 20,000	$ 31,000
State income tax benefits	1,971,000	2,093,000
Net operating loss carryforward	$ 13,766,000	12,686,000
Warranty expense		5,000
Derivative liability expense	$ 1,843,000	1,550,000
Research and development credit carryforwards	663,000	607,000
Patent amortization	(472,000)	(537,000)
Vacation accrual	9,000	10,000
Valuation reserve	$ (17,800,000)	$ (16,445,000)
Net deferred tax asset