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Long-term Debt and Other Credit Arrangements	6 Months Ended
	Oct. 31, 2021
Debt Disclosure [Abstract]
Long-term Debt and Other Credit Arrangements	Long-term Debt and Other Credit Arrangements At October 31, 2021, advances of $12.5 million were outstanding under the Company's revolving credit facility, compared to advances of $6.8 million outstanding as of April 30, 2021. The Company had standby letters of credit outstanding of $704,000 at October 31, 2021, unchanged from April 30, 2021. Amounts available under the revolving credit facility were $2.5 million and $7.5 million at October 31, 2021 and April 30, 2021, respectively. On July 30, 2021, the Company entered into a Twelfth Amendment to Credit and Security Agreement (the “Amendment”) with Wells Fargo Bank, National Association (the “Bank”). The Amendment made certain changes to the Credit and Security Agreement, dated as of May 6, 2013, as amended (the “Credit Agreement”), between the Company and the Bank, and to the Revolving Line of Credit Note, dated May 6, 2013, made by the Company and payable to the order of the Bank, as amended (the “Revolving Note”). The changes included (i) extending the maturity date under the Credit Agreement and Revolving Note from July 30, 2021 to April 30, 2022; (ii) removing the minimum EBITDA covenant; (iii) in addition to the existing Minimum Monthly Liquidity requirement as of the end of each calendar month of not less than $2,000,000, adding an additional covenant that the Company will maintain Supplemental Liquidity (as defined in the amended Credit Agreement) as of the first day of each calendar month not less than (a) during the period from August 1, 2021 through December 31, 2021, $1,000,000 and (b) thereafter $1,500,000; and (iv) restating the amended Credit Agreement to reflect all amendments to date. At October 31, 2021 and April 30, 2021, the Company was in compliance with all the financial covenants under its revolving credit facility.

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- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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