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Long-term Debt and Other Credit Arrangements	3 Months Ended
	Jul. 31, 2019
Debt Disclosure [Abstract]
Long-term Debt and Other Credit Arrangements	Long-term Debt and Other Credit Arrangements At July 31, 2020, advances of $8.5 million were outstanding under the Company’s bank revolving credit facility, compared to advances of $4.7 million outstanding as of April 30, 2020. The Company had standby letters of credit outstanding of $512,000 at July 31, 2020, unchanged from April 30, 2020. Amounts available under the revolving credit facility were $6.0 million and $8.7 million at July 31, 2020 and April 30, 2020, respectively.   At April 30, 2020, the Company was not in compliance with all of the financial covenants under the revolving credit facility. On July 20, 2020, the Company entered into an amendment to the Loan Agreement and Line of Credit which effected changes in certain financial covenants set forth in the Loan Agreement and included a waiver of the non-compliance described above. This amendment did not change the amount of availability provided by the Company's Line of Credit. At July 31, 2020, the Company was in compliance with all the financial covenants under its revolving credit facility.

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No definition available.

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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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