Annual report pursuant to Section 13 and 15(d)

Other Long Term Liabilities (Details)

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Other Long Term Liabilities (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Other long term liabilities $ 608,728 $ 532,680
Severance liability [Member]    
Other long term liabilities 168,706 131,904
Customer deposit balance [Member]    
Other long term liabilities $ 440,021 $ 400,775