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Note 2 - Acquisitions (Tables) (BGI [Member])
3 Months Ended
Jun. 30, 2014
BGI [Member]
 
Note 2 - Acquisitions (Tables) [Line Items]  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Inventories, net

  $ 1,268  

Property, plant and equipment, net

    47  

Intangibles, net

    5,711  

Goodwill

    3,295  

Accrued expenses

    (53 )

Total purchase price allocation

  $ 10,268  
Business Acquisition, Pro Forma Information [Table Text Block]
   

Three Months Ended

 
   

June 30,

 
   

2014

   

2013

 

Revenues

  $ 16,718     $ 13,134  

Net income

    1,959       2,395  

Net income per common share:

               

Basic

  $ 0.56     $ 0.71  

Diluted

    0.54       0.67