Basis of Presentation and Accounting Policies	9 Months Ended
Jan. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Accounting Policies	NOTE 1. BASIS OF PRESENTATION AND ACCOUNTING POLICIES The accompanying unaudited interim consolidated financial statements of REGI U.S., Inc. (“REGI”, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America and the rules of the Securities and Exchange Commission, and should be read in conjunction with the audited financial statements and notes thereto for the year ended April 30, 2016 filed on Form 10-K with the SEC. In the opinion of management, the accompanying unaudited interim consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, necessary to present fairly the financial position and the results of operations for the interim period presented herein. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year or for any future period. Notes to the unaudited consolidated financial statements which would substantially duplicate the disclosures contained in the audited consolidated financial statements for fiscal 2016 as reported in the Form 10-K, have been omitted. Property, plant and equipment Property and equipment are stated at cost, which includes the acquisition price and any direct costs to bring the asset into use at its intended location, less accumulated amortization. Amortization of property and equipment is calculated using the straight-line method to write off the cost, net of any estimated residual value, over their estimated useful lives of the assets as follows: Office equipment 5 years and electronic equipment 2 years. Amortization of office equipment is included in general and administrative expenses; amortization of research equipment is included in research and development expense.

Basis of Presentation and Accounting Policies

9 Months Ended

Jan. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Accounting Policies

NOTE 1. BASIS OF PRESENTATION AND ACCOUNTING POLICIES

The accompanying unaudited interim consolidated financial statements of REGI U.S., Inc. (“REGI”, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America and the rules of the Securities and Exchange Commission, and should be read in conjunction with the audited financial statements and notes thereto for the year ended April 30, 2016 filed on Form 10-K with the SEC. In the opinion of management, the accompanying unaudited interim consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, necessary to present fairly the financial position and the results of operations for the interim period presented herein. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year or for any future period. Notes to the unaudited consolidated financial statements which would substantially duplicate the disclosures contained in the audited consolidated financial statements for fiscal 2016 as reported in the Form 10-K, have been omitted.

Property, plant and equipment

Property and equipment are stated at cost, which includes the acquisition price and any direct costs to bring the asset into use at its intended location, less accumulated amortization.

Amortization of property and equipment is calculated using the straight-line method to write off the cost, net of any estimated residual value, over their estimated useful lives of the assets as follows: Office equipment 5 years and electronic equipment 2 years. Amortization of office equipment is included in general and administrative expenses; amortization of research equipment is included in research and development expense.