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Note 3 - Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

Product Category
		2020				2019				2018
Pumps and pump systems		$	300,906			$	341,304			$	357,882
Repair parts for pumps and pump systems and other			48,061				56,875				56,452
Total net sales		$	348,967			$	398,179			$	414,334

Geographic Location
		2020				2019				2018
United States		$	246,913			$	275,290			$	271,820
Foreign countries			102,054				122,889				142,514
Total net sales		$	348,967			$	398,179			$	414,334

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		December 31, 2020				December 31, 2019
Contract assets		$	-			$	393
Contract liabilities			8,004				4,911

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

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