Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Schedule of Customers Representing Greater than 10% of Accounts Receivable and Revenue

The Company’s customers representing greater than 10% of accounts receivable and revenue for the periods presented were as follows:

	Revenue						Accounts Receivable
	Year Ended December 31,						December 31,
Customers	2013			2014			2013			2014
State of Ohio		28	%		*			100	%		*
Customer A		72	%		*			*			*
Customer B		*			52	%		*			*
Customer C		*			40	%		*			*
Customer D		*			*			*			100	%

Schedule of Depreciation and Amortization Periods for Property and Equipment

Depreciation and amortization periods for property and equipment are as follows:

Property and Equipment	Estimated Useful Life
Prototype	2 years
Machinery and equipment	5 – 15 years
Furniture and fixture	5 – 10 years
Software	3 years
Leasehold improvements	Lesser of estimated useful life or remaining lease term