Segment Information (Tables)

6 Months Ended

May 31, 2017

Segment Reporting [Abstract]

Summary of Customers Comprising 10% or More of Total Revenue

The following customers each comprised 10% or more of our total revenue for each of the three and six months ended May 31, 2017 and May 31, 2016, respectively:

	Three Months Ended				Six Months Ended
Customers	May 31, 2017		May 31, 2016		May 31, 2017		May 31, 2016
Southern California Edison	42.9	%	49.6	%	37.9	%	47.8	%
Southern California Public Power Authority	13.6	%	*		12.5	%	*
First Solar	*		*		*		12.5	%

* Total revenue to these customers were less than 10% of our total revenue for the period.