Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - USD ($)
Mar. 31, 2016
Mar. 31, 2015
Long-term Purchase Commitment [Line Items]    
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months [1] $ 7,086,000  
Unrecorded Unconditional Purchase Obligation [1] 7,086,000  
Operating Leases, Future Minimum Payments Due, Next Twelve Months 3,110,000  
Operating Leases, Future Minimum Payments, Due in Two Years 1,009,000  
Operating Leases, Future Minimum Payments, Due in Three Years 189,000  
Operating Leases, Future Minimum Payments, Due in Four Years 58,000  
Operating Leases, Future Minimum Payments Due 4,366,000  
Other Commitment, Due in Next Twelve Months 311,000  
Other Commitment 311,000  
Contractual Obligation, Due in Next Twelve Months [1] 10,507,000  
Contractual Obligation, Due in Second Year 1,009,000  
Contractual Obligation, Due in Third Year 189,000  
Purchase Obligation, Due in Fourth Year 58,000  
Purchase Obligation [1] 11,763,000  
Reserve on Firm Purchase Commitments $ 388,000 $ 675,000
[1] A reserve for a net loss on firm purchase commitments of $388,000 and $675,000 is recorded on the balance sheet as of March 31, 2016 and March 31, 2015, respectively.