|12 Months Ended|
Dec. 31, 2016
Inventories, which are primarily purchased from third parties, consisted of the following:
Activity related to inventory reserves was as follows:
The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.
Reference 1: http://www.xbrl.org/2003/role/presentationRef