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Product Line, Geographic, Significant Customer and Concentration of Credit Risk Data (Tables)
 12 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
Schedule of Product Information
The following table sets forth the various components of net sales by product line as a percentage of total net sales:
 
Years ended December 31,
 
2017
 
2016
Residential homes
 
68
%
 
79
%
Commercial structures
 
32
%
 
21
%
Total
 
100
%
 
100
%
Schedule of Percentage of Total Sales and Accounts Receivable from Customer
Sales to customers comprising more than 10% of our total net sales and corresponding accounts receivable concentration information for such customers is summarized below:
 
 
 
Percent of total sales for
years ended December 31,
 
Percent of total accounts
receivable as of December 31,
 
 
2017
 
2016
 
2017
 
2016
Residential Customers
 
 
 
 
 
 
 
 
Customer A
 
*
 
10.7%
 
14.1%
 
*
Customer B
 
*
 
*
 
*
 
11.8%
 
 
 
 
 
 
 
 
 
Commercial Customers
 
 
 
 
 
 
 
 
Customer C
 
*
 
*
 
16.8%
 
*
Customer D
 
*
 
*
 
15.7%
 
*
Customer E
 
*
 
*
 
*
 
27.0%
* Percent was less than 10% of the total.