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Note 15 - Related Party Transaction	9 Months Ended
Note 15 - Related Party Transaction	Sep. 30, 2016
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	15. Related Party Transaction In the second quarter of 2015, the Company engaged Raymond James & Associates, an affiliate of Eagle Asset Management, to provide investment banking services related to a possible disposition of the Company’s Tubular Products business. Eagle Asset Management was a substantial stockholder of the Company (owning more than 10 percent of the Company’s common stock) until September 30, 2015, when Eagle Asset Management reported that it then owned less than 5 percent of the Company’s common stock. Less than $5,000 was billed by Raymond James during the three and nine month periods ended September 30, 2016. Approximately $17,000 of reimbursable expenses were billed by Raymond James during the nine month period ended September 30, 2015, of which $12,000 was paid by September 30, 2015. Professional fees payable to Raymond James will be contingent upon completion of a future transaction, which may or may not occur.