2. RECENT ACCOUNTING PRONOUNCEMENTS (Policies)	6 Months Ended
Nov. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	2. RECENT ACCOUNTING PRONOUNCEMENTS Accounting Standards Adopted Financial Instruments In January 2016, the FASB issued an accounting standard update related to the recognition and measurement of financial assets and financial liabilities. This standard changes accounting for equity investments and financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. In addition, this standard clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The Company adopted this new standard in fiscal year 2020. The adoption of this standard did not have a significant impact on the Company’s consolidated financial statements. Leases In February 2016, the FASB issued ASC Update No. 2016-02, Leases (FASB ASC Topic 842, Leases). The Company adopted the standard as of June 1, 2019, using the modified retrospective approach and the transition method provided by ASC Update No. 2018-11, Leases (Topic 842): Targeted Improvements. Under this method, the Company applied the new leasing rules on the date of adoption and recognized the cumulative effect of initially applying the standard as an adjustment to its opening balance sheet, rather than at the earliest comparative period presented in the financial statements. Prior periods presented are in accordance with the previous lease guidance under FASB ASC Topic 840, Leases. In addition, the Company applied the package of practical expedients permitted under FASB ASC Topic 842 transition guidance to its entire lease portfolio at June 1, 2019. As a result, the Company was not required to reassess (i) whether any expired or existing contracts are or contain leases, (ii) the classification of any expired or existing leases and (iii) the treatment of initial direct costs for any existing leases. Furthermore, the Company elected not to separate lease and non-lease components for the majority of its leases. Instead, for all applicable classes of underlying assets, the Company accounted for each separate lease component and the non-lease components associated with that lease component as a single lease component. As a result of adopting FASB ASC Topic 842, Leases on June 1, 2019, the Company recognized right-of-use assets of $2.7 million and corresponding liabilities of $2.8 million for its existing operating lease portfolio on its unaudited condensed consolidated balance sheet. Operating lease right-of-use assets are presented within Operating lease right-of-use assets and corresponding liabilities are presented within Operating lease liabilities, short-term and Operating lease liabilities, long-term on the Company’s unaudited condensed consolidated balance sheet. There was no material impact to the Company’s unaudited condensed consolidated statements of operations or unaudited condensed consolidated statements of cash flows. Please refer to Note “11. LEASES” for information regarding the Company’s lease portfolio as of November 30, 2019 as accounted for under FASB ASC Topic 842, Leases. Accounting Standards Not Yet Adopted Financial Instruments In June 2016, the FASB issued an accounting standard update (“ASU”) that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.

2. RECENT ACCOUNTING PRONOUNCEMENTS (Policies)

6 Months Ended

Nov. 30, 2019

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

2. RECENT ACCOUNTING PRONOUNCEMENTS

Accounting Standards Adopted

Financial Instruments

In January 2016, the FASB issued an accounting standard update related to the recognition and measurement of financial assets and financial liabilities. This standard changes accounting for equity investments and financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. In addition, this standard clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The Company adopted this new standard in fiscal year 2020. The adoption of this standard did not have a significant impact on the Company’s consolidated financial statements.

Leases

In February 2016, the FASB issued ASC Update No. 2016-02, Leases (FASB ASC Topic 842, Leases). The Company adopted the standard as of June 1, 2019, using the modified retrospective approach and the transition method provided by ASC Update No. 2018-11, Leases (Topic 842): Targeted Improvements. Under this method, the Company applied the new leasing rules on the date of adoption and recognized the cumulative effect of initially applying the standard as an adjustment to its opening balance sheet, rather than at the earliest comparative period presented in the financial statements. Prior periods presented are in accordance with the previous lease guidance under FASB ASC Topic 840, Leases.

In addition, the Company applied the package of practical expedients permitted under FASB ASC Topic 842 transition guidance to its entire lease portfolio at June 1, 2019. As a result, the Company was not required to reassess (i) whether any expired or existing contracts are or contain leases, (ii) the classification of any expired or existing leases and (iii) the treatment of initial direct costs for any existing leases. Furthermore, the Company elected not to separate lease and non-lease components for the majority of its leases. Instead, for all applicable classes of underlying assets, the Company accounted for each separate lease component and the non-lease components associated with that lease component as a single lease component.

As a result of adopting FASB ASC Topic 842, Leases on June 1, 2019, the Company recognized right-of-use assets of $2.7 million and corresponding liabilities of $2.8 million for its existing operating lease portfolio on its unaudited condensed consolidated balance sheet. Operating lease right-of-use assets are presented within Operating lease right-of-use assets and corresponding liabilities are presented within Operating lease liabilities, short-term and Operating lease liabilities, long-term on the Company’s unaudited condensed consolidated balance sheet. There was no material impact to the Company’s unaudited condensed consolidated statements of operations or unaudited condensed consolidated statements of cash flows. Please refer to Note “11. LEASES” for information regarding the Company’s lease portfolio as of November 30, 2019 as accounted for under FASB ASC Topic 842, Leases.

Accounting Standards Not Yet Adopted

Financial Instruments

In June 2016, the FASB issued an accounting standard update (“ASU”) that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.