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Commitments and Contingencies (CustomerSupport Commitments) (Narrative) (Details) (USD $)
Mar. 31, 2013
Mar. 31, 2012
Commitments And Contingencies Customersupport Commitments Narrative Details    
Third party customer support vendor minimum monthly commitment $ 430,000  
Third party customer support vendor maximum obligation 2,200,000  
Advance termination notice required, days 150  
Property and equipment under capital lease 110,000 139,000
Accumulated depreciation related to assets under capital lease $ 69,000 $ 46,000