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Stock options (Details Narrative) - USD ($)		1 Months Ended			12 Months Ended
	Jun. 01, 2016	Dec. 31, 2017	Nov. 30, 2017	Jul. 25, 2017	Dec. 31, 2017	Dec. 31, 2016
Stock options granted		1,225,000		56,000	0	600,000
Stock options granted, strike price						$ 0.15
Value of fair value of options and warrants granted		$ 121,275	$ 472,700	$ 694	$ 472,700	$ 65,660
Stock Option [Member] | 2006 Stock Incentive Plan [Member]
Common stock reserved under the plan						5,000,000
Stock options expiration period	2 years
Stock options granted	1,150,000
Value of fair value of options and warrants granted	$ 65,660
Stock Option [Member] | 2006 Stock Incentive Plan [Member] | Strike price of $0.15 [Member]
Stock options granted	600,000
Stock options granted, strike price	$ 0.15
Value of fair value of options and warrants granted	$ 38,160
Stock Option [Member] | 2006 Stock Incentive Plan [Member] | Strike price of $0.25 [Member]
Stock options granted	550,000
Stock options granted, strike price	$ 0.25
Value of fair value of options and warrants granted	$ 27,500

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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