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Intangible Assets (Tables)

6 Months Ended

Oct. 31, 2020

Intangible Assets Gross Excluding Goodwill [Abstract]

Summary of Intangible Assets

The following table presents a summary of intangible assets as of October 31, 2020 and April 30, 2020 (in thousands):

		October 31, 2020												April 30, 2020
		Gross												Gross
		Carrying				Accumulated				Net Carrying				Carrying				Accumulated				Net Carrying
		Amount				Amortization				Amount				Amount				Amortization				Amount
Customer relationships		$	2,580			$	(2,004	)		$	576			$	2,580			$	(1,932	)		$	648
Developed technology			200				(188	)			12				200				(176	)			24
Patents, trademarks, and trade names			8,210				(5,275	)			2,935				8,140				(5,091	)			3,049
			10,990				(7,467	)			3,523				10,920				(7,199	)			3,721
Patents in progress			935				—				935				654				—				654
Total definite-lived intangible assets		$	11,925			$	(7,467	)		$	4,458			$	11,574			$	(7,199	)		$	4,375

Schedule of Future Expected Amortization Expense

Estimated amortization expense of intangible assets for the remainder of fiscal 2021 and succeeding fiscal years is as follows (in thousands):

Fiscal		Amount
2021		$	268
2022			493
2023			452
2024			443
2025			432
Thereafter			1,435
Total		$	3,523

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
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