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Note 3 - Revenue (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Product Category
		Three Months Ended June 30,								Six Months Ended June 30,
		2019				2018				2019				2018
Pumps and pump systems		$	92,167			$	97,784			$	174,688			$	178,611
Repair parts for pumps and pump systems and other			16,163				14,043				30,501				29,820
Total net sales		$	108,330			$	111,827			$	205,189			$	208,431

		Geographic Location
		Three Months Ended June 30,								Six Months Ended June 30,
		201 9				201 8				2019				2018
United States		$	74,784			$	71,519			$	142,485			$	135,952
Foreign countries			33,546				40,308				62,704				72,479
Total net sales		$	108,330			$	111,827			$	205,189			$	208,431

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

		June 3 0 , 201 9				December 31 , 201 8
Contract assets		$	801			$	1,953
Contract liabilities		$	7,260			$	5,232

X

- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ 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=118956577&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=118956577&loc=SL49130545-203045

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