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Commitments and Contingencies (Details Textual)
12 Months Ended
Mar. 01, 2016
Nov. 04, 2014
claim
Mar. 31, 2016
USD ($)
extension_option
Mar. 31, 2015
USD ($)
Mar. 31, 2014
USD ($)
Long-term Purchase Commitment [Line Items]          
Rent expense under operating leases     $ 502,000 $ 398,000 $ 1,238,000
Initial lease term 24 months        
Number of extension options (extension option) | extension_option     3    
Extended lease term 12 months        
Discretionary company contributions to retirement savings plan     $ 10,000 $ 23,000 $ 26,000
Number of claims dismissed (claim) | claim   6      
Inventories          
Long-term Purchase Commitment [Line Items]          
Purchase commitments     2,189,000    
General and administrative          
Long-term Purchase Commitment [Line Items]          
Monthly rental payment receivable     $ 21,000