Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Oct. 01, 2011	Dec. 31, 2010
Current Assets:
Accumulated Depreciation and Amortization of Property, Plant, and Equipment	$ 28,684	$ 25,990
Shareholders' Equity:
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	20,000,000	20,000,000
Common Stock, shares issued	9,363,452	9,092,536
Treasury stock, shares	528,341	528,341
Common Class B Member
Shareholders' Equity:
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	5,000,000	5,000,000
Common Stock, shares issued	3,376,661	3,553,726