Inventory

12 Months Ended

Dec. 28, 2019

Inventory Disclosure [Abstract]

Inventory

INVENTORY

Inventory consists primarily of used oil and processed oil, solvents and solutions, new and refurbished parts cleaning machines, drums and supplies, and other items. Inventories are valued at the lower of FIFO cost or net realizable value, net of any reserves for excess, obsolete, or unsalable inventory.

The carrying value of inventory consisted of the following:

(thousands)	December 28, 2019		December 29, 2018
Solvents and solutions	$	8,694	$	8,216
Used oil and processed oil	8,349		12,124
Machines	5,440		5,334
Drums and supplies	4,697		5,231
Other	2,632		2,378
Total inventory	29,812		33,283
Less: machine refurbishing reserve	439		224
Total inventory - net	$	29,373	$	33,059

The Company continually monitors its inventory levels at each of its locations and evaluates inventories for excess or slow-moving items. If circumstances indicate the cost of inventories exceed their recoverable value, inventories are reduced to net realizable value. In fiscal 2019 and 2018, the Company recorded no inventory impairment charges.