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9 FAIR VALUE MEASUREMENT (Tables)
 3 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]  
Fair value hierarchy
                 
  Basis of Fair Value Measurements  
  Balance   Quoted Prices
in Active Markets
for Identical Items
(Level 1)		   Significant
Other
Observable
Inputs
(Level 2)		   Significant
Unobservable
Inputs
(Level 3)		  
  (In Thousands)  
Balance at June 30, 2015:                
Financial assets:                
Money market investment   $ 93     $ 93     $ —     $ —  
                                 
Total financial assets   $ 93     $ 93     $ —     $ —