Unaudited Interim Financial Statements	3 Months Ended
Jul. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Unaudited Interim Financial Statements	Note 1: Unaudited Interim Financial Statements The accompanying financial statements have been prepared in accordance with the instructions for Form 10-Q and do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. It is suggested that these condensed financial statements be read in conjunction with the financial statements and notes thereto included in the Company’s April 30, 2019 annual report on Form 10-K. In the opinion of management, all adjustments, consisting only of normal recurring adjustments considered necessary for a fair presentation, have been included. Operating results for any quarter are not necessarily indicative of the results for any other quarter or for the full year. Accounting Estimates—The preparation of these financial statements requires the use of estimates and assumptions including the carrying value of assets. The estimates and assumptions result in approximate rather than exact amounts. Recently Issued Accounting Pronouncements — In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”), which provides guidance for accounting for leases. ASU 2016-02 requires lessees to classify leases as either finance or operating leases and to record a right-of-use asset and a lease liability for all leases with a term greater than 12 months regardless of the lease classification. The lease classification will determine whether the lease expense is recognized based on an effective interest rate method or on a straight-line basis over the term of the lease. Accounting for lessors remains largely unchanged from current GAAP. ASU 2016-02 is effective for the Company beginning May 1, 2019. Early adoption is permitted. In July 2018, the FASB issued ASU No. 2018-10 “Codification Improvements to Topic 842, Leases” (“ASU 2018-10”) and ASU No. 2018-11 “Leases (Topic 842) Targeted Improvements” (“ASU 2018-11”) and ASU 2018-20, “Narrow-Scope Improvements for Lessors”. ASU 2018-10 provides certain amendments that affect narrow aspects of the guidance issued in ASU 2016-02. ASU 2018-11 allows all entities adopting ASU 2016-02 to choose an additional (and optional) transition method of adoption, under which an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. ASU 2018-11 also allows lessors to not separate non-lease components from the associated lease component if certain conditions are met. During the first quarter of 2019, the FASB issued ASU 2019-01, Leases (Topic 842) to amend ASU 2016-02. This amendment exempts both lessees and lessors from having to provide certain prior year interim disclosure information in the fiscal year in which a company adopts the new leases standard. The Company has adopted the ASUs in the first quarter of fiscal 2020 and the Company’s accounting systems have been upgraded to comply with the requirements of the new standard, however, the adoption of ASU 2016-02 did not have a material impact on the Company’s financial statements and related disclosures because leases are not material to the financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement - Disclosure Framework (Topic 820). The updated guidance improves the disclosure requirements on fair value measurements. The updated guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures. The Company is currently assessing the timing and impact of adopting the updated provisions. In August 2018, The FASB issued ASU 2018-14 to improve the effectiveness of disclosures for defined benefit plans under ASC 715-20. The ASU applies to employers that sponsor defined benefit pension or other postretirement plans. The FASB issued ASU 2018-14 as part of its disclosure framework project, which has an objective and primary focus to improve the effectiveness of disclosures in the notes to financial statements. As part of the project, during August 2018, the Board also issued a Concepts Statement, which the FASB used as a basis for amending the disclosure requirements for Subtopic 715-20. The guidance is effective or fiscal years ending after December 15, 2020 and early adoption is permitted. The Company is currently assessing the timing and impact of adopting the updated provisions. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which requires the Company to measure and recognize expected credit losses for financial assets held and not accounted for at fair value through net income. In November 2018, April 2019 and May 2019, the FASB issued ASU No. 2018-19, “Codification Improvements to Topic 326, Financial Instruments - Credit Losses,” “ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses,” “Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” and “ASU No. 2019-05, Financial Instruments - Credit Losses (Topic 326): Targeted Transition Relief,” which provided additional implementation guidance on the previously issued ASU. The ASU is effective for fiscal years beginning after December 15, 2020. The ASU requires a modified retrospective adoption method. The Company is still evaluating the impact of adoption on its financial statements and disclosures.

Unaudited Interim Financial Statements

3 Months Ended

Jul. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1: Unaudited Interim Financial Statements

The accompanying financial statements have been prepared in accordance with the instructions for Form 10-Q and do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. It is suggested that these condensed financial statements be read in conjunction with the financial statements and notes thereto included in the Company’s April 30, 2019 annual report on Form 10-K. In the opinion of management, all adjustments, consisting only of normal recurring adjustments considered necessary for a fair presentation, have been included. Operating results for any quarter are not necessarily indicative of the results for any other quarter or for the full year.

Accounting Estimates—The preparation of these financial statements requires the use of estimates and assumptions including the carrying value of assets. The estimates and assumptions result in approximate rather than exact amounts.

Recently Issued Accounting Pronouncements — In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”), which provides guidance for accounting for leases. ASU 2016-02 requires lessees to classify leases as either finance or operating leases and to record a right-of-use asset and a lease liability for all leases with a term greater than 12 months regardless of the lease classification. The lease classification will determine whether the lease expense is recognized based on an effective interest rate method or on a straight-line basis over the term of the lease. Accounting for lessors remains largely unchanged from current GAAP. ASU 2016-02 is effective for the Company beginning May 1, 2019. Early adoption is permitted. In July 2018, the FASB issued ASU No. 2018-10 “Codification Improvements to Topic 842, Leases” (“ASU 2018-10”) and ASU No. 2018-11 “Leases (Topic 842) Targeted Improvements” (“ASU 2018-11”) and ASU 2018-20, “Narrow-Scope Improvements for Lessors”. ASU 2018-10 provides certain amendments that affect narrow aspects of the guidance issued in ASU 2016-02. ASU 2018-11 allows all entities adopting ASU 2016-02 to choose an additional (and optional) transition method of adoption, under which an entity initially applies the new leases standard at the adoption date and recognizes a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. ASU 2018-11 also allows lessors to not separate non-lease components from the associated lease component if certain conditions are met. During the first quarter of 2019, the FASB issued ASU 2019-01, Leases (Topic 842) to amend ASU 2016-02. This amendment exempts both lessees and lessors from having to provide certain prior year interim disclosure information in the fiscal year in which a company adopts the new leases standard. The Company has adopted the ASUs in the first quarter of fiscal 2020 and the Company’s accounting systems have been upgraded to comply with the requirements of the new standard, however, the adoption of ASU 2016-02 did not have a material impact on the Company’s financial statements and related disclosures because leases are not material to the financial statements.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement - Disclosure Framework (Topic 820). The updated guidance improves the disclosure requirements on fair value measurements. The updated guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures. The Company is currently assessing the timing and impact of adopting the updated provisions.

In August 2018, The FASB issued ASU 2018-14 to improve the effectiveness of disclosures for defined benefit plans under ASC 715-20. The ASU applies to employers that sponsor defined benefit pension or other postretirement plans. The FASB issued ASU 2018-14 as part of its disclosure framework project, which has an objective and primary focus to improve the effectiveness of disclosures in the notes to financial statements. As part of the project, during August 2018, the Board also issued a Concepts Statement, which the FASB used as a basis for amending the disclosure requirements for Subtopic 715-20. The guidance is effective or fiscal years ending after December 15, 2020 and early adoption is permitted. The Company is currently assessing the timing and impact of adopting the updated provisions.

In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which requires the Company to measure and recognize expected credit losses for financial assets held and not accounted for at fair value through net income. In November 2018, April 2019 and May 2019, the FASB issued ASU No. 2018-19, “Codification Improvements to Topic 326, Financial Instruments - Credit Losses,” “ASU No. 2019-04, Codification Improvements to Topic 326, Financial Instruments - Credit Losses,” “Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” and “ASU No. 2019-05, Financial Instruments - Credit Losses (Topic 326): Targeted Transition Relief,” which provided additional implementation guidance on the previously issued ASU. The ASU is effective for fiscal years beginning after December 15, 2020. The ASU requires a modified retrospective adoption method. The Company is still evaluating the impact of adoption on its financial statements and disclosures.