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Stock Options and Share-based Compensation	9 Months Ended
	Jan. 31, 2020
Equity [Abstract]
Stock Options and Share-based Compensation	Stock Options and Share-based Compensation Compensation costs related to stock options and other stock awards granted by the Company are charged against operating expenses during their vesting period, under ASC 718, “Compensation-Stock Compensation”. The Company granted 36,534 RSUs under the 2017 Omnibus Incentive Plan in June 2019. The RSUs include both a service and a performance component, vesting over a three-year period. The recognized expense is based upon the vesting period for service criteria and estimated attainment of the performance criteria at the end of the three-year period, based on the ratio of cumulative days incurred to total days over the three-year period. The Company recorded share-based compensation expense during the three and nine months ended January 31, 2020 of $126,000 and $208,000, respectively, with the remaining estimated share-based compensation expense of $478,000 to be recorded over the remaining vesting periods.

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- Definition

The entire disclosure for accounts comprising shareholders' equity, comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income, and compensation-related costs for equity-based compensation. Includes, but is not limited to, disclosure of policies, compensation plan details, equity-based arrangements to obtain goods and services, deferred compensation arrangements, and employee stock purchase plan details.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI http://asc.fasb.org/topic&trid=2228938

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