Summary of Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2021

Disaggregation of Revenue [Table Text Block]

Total revenue recognized over time as POC method was approximately $50.2 million and $38.0 million of the $54.3 million and $41.5 million reported for the years ended April 30, 2021 and 2020, respectively. The amounts by segment and product line were as follows:

	Year Ended April 30, 2021
	(In thousands)
	POC			POT Revenue			Total Revenue
	Revenue
FEI-NY	$	39,225		$	3,175		$	42,400
FEI-Zyfer		10,993			2,842			13,835
Intersegment		(10	)		(1,971	)		(1,981	)
Revenue	$	50,208		$	4,046		$	54,254

	Year Ended April 30, 2020
	(In thousands)
	POC			POT Revenue			Total Revenue
	Revenue
FEI-NY	$	28,720		$	3,031		$	31,751
FEI-Zyfer		9,210			1,704			10,914
Intersegment		(88	)		(1,070	)		(1,158	)
Revenue	$	37,842		$	3,665		$	41,507

Revenue from External Customers by Products and Services [Table Text Block]

	Years Ended April 30,
	(in thousands)
	2021		2020
Revenues by Product Line:
Satellite Revenue	$	26,980	$	20,422
Government Non-Space Revenue		24,775		16,939
Other Commercial & Industrial Revenue		2,499		4,146
Consolidated revenues	$	54,254	$	41,507