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Other Assets
 12 Months Ended
Dec. 31, 2017
Other Assets [Abstract]  
Other Assets
8.  Other Assets

Other assets consist of the following:

(in thousands)
December 31,
 
2017
 
2016
Inventory
$
-
 
$
1,443
Other
 
37
  
131
Total
$
37
 
$
1,574

As of December 31, 2016, other assets are comprised primarily of inventory that was being purchased to support the construction of three simulation projects related to a significant contract that was executed during the first quarter of fiscal year 2016. The inventories are to be relieved and charged to the project upon delivery and customer acceptance, which is expected during the second quarter of 2018 and beyond. As of December 31, 2017, inventory is classified as prepaid expenses and other current assets.