Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jul. 03, 2015	Dec. 31, 2014
Accumulated Depreciation	$ 194,660	$ 183,829
Stockholders' Equity:
Preferred stock, par value (in usd per share)	$ 1	$ 1
Preferred stock, shares authorized	200,000	200,000
Preferred stock, shares issued	0	0
Common stock, par value (in usd per share)	$ 1	$ 1
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	27,686,687	27,518,226
Common Stock held in treasury, at cost (in shares)	485,332	385,942