Stock-based compensation (Details Textual) - USD ($)		1 Months Ended			3 Months Ended	9 Months Ended
	Jan. 11, 2016	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Sep. 30, 2016	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issuance Date	Jan. 11, 2016
Stock Issued During Period, Shares, New Issues	83,334		58,594	58,594
Stock Issued During Period Per Share Value Of New Issues	$ 0.15		$ 0.16	$ 0.16
Stock Issued During Period, Value, New Issues	$ 12,500		$ 9,375	$ 9,375
Deferred Compensation Liability, Current, Total					$ 25,000	$ 25,000
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issued During Period, Shares, New Issues		46,876
Stock Issued During Period Per Share Value Of New Issues		$ 0.20
Stock Issued During Period, Value, New Issues		$ 9,375
Directors Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issued During Period, Shares, New Issues	41,667		19,531	19,531
Stock Issued During Period, Value, New Issues					$ 9,375	$ 28,125
Directors Two [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issued During Period, Shares, New Issues		15,625
Director One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issued During Period, Shares, New Issues			39,063	39,063
Director One [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock Issued During Period, Shares, New Issues		31,251