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Income Taxes (Details Narrative) - USD ($)
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Effective tax rate 23.40% 29.80%
Income tax expense $ 37,000 $ 81,000
Tax benefit on research and development $ 25,000  
Tax benefit on research and development, percentage 15.80%  
Tax benefit on uncertain tax positions   $ 22,000
Tax benefit on uncertain tax positions, percentage   8.00%