Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details Textual)

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Basis of Presentation (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Mar. 31, 2017
Business Acquisition [Line Items]          
Unbilled Receivables, Current $ 220,000   $ 220,000   $ 0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax $ 0 $ 0 $ 608,000 [1] $ 0  
[1] During the quarter ended September 30, 2017, the Company dissolved the NoranTel legal entity, which triggered a one-time foreign currency gain with the reversal of a cumulative translation adjustment. See Note 1.