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Note 20 - Segment Information (Details) - Financial Information From Reportable Segments - Balance Sheet (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]    
Assets $ 146,283 $ 160,968
Liabilities 90,031 98,035
Industrial Group [Member]
   
Segment Reporting Information [Line Items]    
Assets 100,593 114,268
Liabilities 54,232 66,679
Electronics Group [Member]
   
Segment Reporting Information [Line Items]    
Assets 29,689 38,852
Liabilities 9,216 11,063
General, Corporate and Other [Member]
   
Segment Reporting Information [Line Items]    
Assets 16,001 7,848
Liabilities $ 26,583 $ 20,293