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Foreign Operations (Tables)	12 Months Ended
	Dec. 31, 2020
Foreign Operations
Sales by country, based on the ship to location of customers' production facilities	2020 2019 2018 United States $ 136,424,000 $ 178,953,000 $ 181,207,000 Mexico 64,942,000 79,761,000 74,029,000 Canada 16,827,000 16,988,000 12,494,000 Other 4,163,000 8,588,000 1,755,000 Total $ 222,356,000 $ 284,290,000 $ 269,485,000 2020 2019 United States $ 36,698,000 $ 39,132,000 Mexico 29,537,000 31,865,000 Canada 7,817,000 8,209,000 Total $ 74,052,000 $ 79,206,000

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- Definition

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- References

No definition available.

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