Stock-based compensation (Details Textual) - USD ($)		1 Months Ended
	Jan. 11, 2016	Apr. 30, 2016	Mar. 31, 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
Stock Issued During Period Per Share Value Of New Issues	$ 0.15
Stock Issued During Period, Value, New Issues	$ 12,500
Deferred Compensation Liability, Current, Total			$ 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		58,594
Stock Issued During Period Per Share Value Of New Issues		$ 0.16
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
Stock Issued During Period, Value, New Issues	$ 9,375
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		19,531
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		39,063