Description of business and summary of significant accounting policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Significant Accounting Policies [Line Items]
Marketing and Advertising Expense	$ 8,497	$ 3,686
Percentage Of Minimum Deposit For Custom and Large Tank Fill Systems	50.00%
Percentage Of Restocking Fees	15.00%
Conversion Of Accrued Payroll To Stock	$ 54,000	$ 54,000
Potentially Dilutive Securities Included Earnings Per Share	44,837,540	45,905,784
Common Stock Payable Shares	195,610	195,610
Minimum [Member] | Furniture and Fixtures [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member] | Furniture and Fixtures [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years