Annual report pursuant to Section 13 and 15(d)

Acquisitions (Pro Forma Information) (Details)

v3.6.0.2
Acquisitions (Pro Forma Information) (Details) - Specialty Pipe And Tube, Inc. [Member]
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 03, 2015
USD ($)
$ / shares
Business Acquisition [Line Items]  
Pro forma revenues | $ $ 228,647
Pro forma net income | $ $ 8,928
Earnings per share:  
Basic (dollars per share) | $ / shares $ 1.85
Diluted (dollars per share) | $ / shares $ 1.85