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Interest rate risk (Details Narrative)	12 Months Ended
Dec. 31, 2017
Interest Rate Risk Details Narrative
Increase decrease interest rates percentage description	Based on the value of variable interest-bearing cash during the year ended December 31, 2017, an assumed 0.5% increase or 0.5% decrease in interest rates during such period would have had no significant effect on the net loss.

Interest rate risk (Details Narrative)

12 Months Ended

Dec. 31, 2017

Interest Rate Risk Details Narrative

Increase decrease interest rates percentage description

Based on the value of variable interest-bearing cash during the year ended December 31, 2017, an assumed 0.5% increase or 0.5% decrease in interest rates during such period would have had no significant effect on the net loss.