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Note 13 - Restructuring	9 Months Ended
	Sep. 30, 2016
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	1 3 . Restructuring In June 2016, the Company made a decision to close the Denver facility (part of the Water Transmission segment) and sell the property. Employee severance and termination related restructuring expenses associated with the closure of approximately $0.3 million were incurred during the three months ended September 30, 2016. The Company expects to incur additional restructuring costs of $0.3 million related to employee severance and termination, which will result in future cash outlays, and additional restructuring costs related to demobilization activities at the Denver facility, of approximately $1.0 million to $2.0 million, which will also result in future cash outlays. In April 2015, the Company initiated a production curtailment at its Atchison, Kansas facility within the Tubular Products Group. Severance related restructuring expenses associated with the production curtailment of approximately $0.5 million were incurred and paid during the three months ended June 30, 2015, and included in Cost of sales for that period.

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The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 420
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-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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