Rendering

Component: (Network and Table)
Network
2412402 - Disclosure - Inventories Components of inventories (Details)
(http://www.aei.com/role/InventoriesComponentsOfInventoriesDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000927003 (http://www.sec.gov/CIK)
Inventory Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Inventory Disclosure [Abstract]
 
 
Parts and raw materials
43,278,000  
40,578,000  
Work in process
5,292,000  
5,643,000  
Finished goods
7,200,000  
6,352,000  
Inventories
55,770,000  
 
52,573,000