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Note 7 - Long-term Debt (Tables)
12 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Debt [Table Text Block]
   
March 31,
2019
   
March 31,
2018
 
Line of credit (4.000%, as of March 31, 2019)
  $
6,000
    $
28,000
 
Term loan (4.000% as of March 31, 2019)
   
17,000
     
18,625
 
Less: discount
   
(262
)    
(365
)
Less: current portion
   
(2,125
)    
(1,625
)
Long-term portion
  $
20,613
    $
44,635
 
Schedule of Maturities of Long-term Debt [Table Text Block]
For the year ending March 31,
 
 
 
 
2020
  $
2,125
 
2021
   
2,625
 
2022
   
18,250
 
Total
  $
23,000