Property and Equipment (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Property and Equipment
Computers and software	$ 59,000	$ 59,000
Machinery and equipment	251,000	251,000
Furniture and office equipment	86,000	86,000
Demonstration vehicles and buses	127,000	127,000
Gross assets	523,000	523,000
Less accumulated depreciation and amortization	(463,000)	(443,000)
Total	$ 60,000	$ 80,000