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           INVENTORIES (Schedule of Service Parts Inventories) (Details) (USD $) 
        In Thousands, unless otherwise specified  | 
        
           Jun. 30, 2014 
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           Mar. 31, 2014 
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|---|---|---|
| Service parts inventories: | ||
| Finished goods | $ 16,471 | $ 17,926 | 
| Component parts | 8,316 | 7,703 | 
| Inventory, Parts and Components, Net of Reserves | $ 24,787 | $ 25,629 | 
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- Definition 
          Carrying amount as of the balance sheet date of service parts inventories. No definition available. 
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- Definition 
          Carrying amount as of the balance sheet date of component parts held by the company as service parts. No definition available. 
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- Definition 
          Carrying amount as of the balance sheet date of finished goods held by the company as service parts. No definition available. 
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- Details 
          
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