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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2022
INVENTORIES  
Schedule of inventories

Inventories consist of:

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March 31, 2022

    

December 31, 2021

Raw material

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$

2,163,000

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$

2,166,000

Work in process

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2,181,000

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1,360,000

Finished goods

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23,204,000

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20,495,000

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​

$

27,548,000

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$

24,021,000