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Deferred revenue (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Deferred revenue Details
Company had deferred revenue	$ 0	$ 866

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- Definition

Company had deferred revenue

+ References

No definition available.

+ Details

Name:	fil_CompanyHadDeferredRevenue
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	fil_DeferredRevenueDetailsAbstract
Namespace Prefix:	fil_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration