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Income Taxes (Schedule of Reconciliation of Provision for Income Taxes Using Statutory Tax Rates to Loss Before Income Taxes and Actual Provision) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Income Tax Disclosure [Abstract]      
Provision for income taxes at statutory tax rate in the PRC $ (1,194) $ (650) $ (1,717)
Effect of income for which no income tax is chargeable (210) (441) (296)
Effect of expense for which no income tax is deductible 1,452 1,209 2,312
Net change in valuation allowances 110 89 175
Under provision of income tax in previous years 150
Effective tax $ 158 $ 207 $ 624