Note 11 - Segment Information (Details) - Segment Reporting Information by Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Goodwill
Goodwill	$ 40,787	$ 40,787
Assets
Assets	772,688	697,349
Flat Products [Member]
Goodwill
Goodwill	500	500
Assets
Assets	543,912	473,397
Tubular and Pipe Products [Member]
Goodwill
Goodwill	40,287	40,287
Assets
Assets	228,193	223,314
Corporate Segment [Member]
Assets
Assets	$ 583	$ 638