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Note 5 - Restructuring and Other Charges (Tables)
12 Months Ended
Dec. 31, 2013
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs [Table Text Block]
 

Thermonics
Relocation

Balance - January 1, 2012

  $ -  

Accruals for facility closure costs

    313  

Cash payments related to facility closure costs

    (359 )

Refund of lease termination fees

    46  

Balance - December 31, 2012

  $ -