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Inventories (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories

Inventories consist of the following:

December 31,

2019

2018

Inventory at FIFO

Finished goods

$

13,131

$

17,313

Materials and products in process

65,880

62,975

Gross inventories

79,011

80,288

Less: LIFO reserve

(47,137

)

(46,341

)

Less: excess and obsolescence reserve

(3,573

)

(2,527

)

Net Inventories

$

28,301

$

31,420