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Note 6 - Long-term Debt (Tables)
12 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Debt [Table Text Block]
 
 
March 31,
201
6
 
 
March 31,
2015
 
Line of credit (2.43% at March 31, 2016)
  $ 27,500     $ 13,500  
Term loan (2.43% at March 31, 2016)
    17,750       12,750  
Less: current portion
    (3,000 )     (3,000 )
Long-term portion
  $ 42,250     $ 23,250  
Schedule of Maturities of Long-term Debt [Table Text Block]
Year ending March 31,
       
2017
  $ 3,000  
2018
    3,000  
2019
    3,000  
2020
    3,000  
2021
    33,250  
    $ 45,250