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Note 7 - Segment Information Report of Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Water Transmission Group [Member]
Net sales:
Net Sales	$ 38,445	$ 62,205	$ 94,687	$ 105,204
Gross profit (loss):
Gross profit (loss)	1,255	11,491	8,774	13,159
Operating income (loss):
Operating Income (loss)	(5,815)	9,543	(182)	9,244
Tubular Products [Member]
Net sales:
Net Sales	15,401	39,783	44,024	79,431
Gross profit (loss):
Gross profit (loss)	(3,848)	(174)	(7,476)	2,472
Operating income (loss):
Operating Income (loss)	(4,254)	(589)	(8,871)	1,705
Corporate Segment [Member]
Operating income (loss):
Operating Income (loss)	(3,258)	(3,555)	(7,357)	(6,676)
Net Sales	53,846	101,988	138,711	184,635
Gross profit (loss)	(2,593)	11,317	1,298	15,631
Operating Income (loss)	$ (13,327)	$ 5,399	$ (16,410)	$ 4,273

X

- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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+ References

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