Concentrations	12 Months Ended
Dec. 31, 2017
Risks and Uncertainties [Abstract]
Concentrations	Concentrations For the years ended December 31, 2017 and 2016, Honda accounted for 52% and 59%, respectively, of the Company's revenues. This customer accounted for 1% and 35% of the Company's accounts receivable at December 31, 2017 and 2016, respectively. The Company does not anticipate material sales to this customer in 2018. For the year ended December 31, 2017, the Company had three suppliers that accounted for approximately 17%, 11% and 11% of the Company's material purchases. For the year ended December 31, 2016, the Company had one supplier that accounted for approximately 30% of the Company's material purchases.

Concentrations

12 Months Ended

Dec. 31, 2017

For the years ended December 31, 2017 and 2016, Honda accounted for 52% and 59%, respectively, of the Company's revenues. This customer accounted for 1% and 35% of the Company's accounts receivable at December 31, 2017 and 2016, respectively. The Company does not anticipate material sales to this customer in 2018.

For the year ended December 31, 2017, the Company had three suppliers that accounted for approximately 17%, 11% and 11% of the Company's material purchases. For the year ended December 31, 2016, the Company had one supplier that accounted for approximately 30% of the Company's material purchases.