Inventories

Inventories consist of the following:



	January 31, 2018		October 31, 2017
Raw materials	$	25,467	$	23,389
Work-in-process	18,693		18,653
Finished goods	20,570		19,770
Total inventory	$	64,730	$	61,812

Total cost of inventory is net of reserves to reduce certain inventory from cost to net realizable value by an allowance for excess and obsolete inventories based on management’s review of on-hand inventories compared to historical and estimated future sales and usage. Such reserves aggregated $5,397 and $5,535 at January 31, 2018 and October 31, 2017, respectively.