Note 4 - Disaggregation of Revenue (Tables)

3 Months Ended

Jul. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended July 31, 2022						Three Months Ended July 31, 2021
	Professional Services		Aerospace Products		Total		Professional Services		Aerospace Products		Total
Geographical Markets
North America	$	8,962	$	5,997	$	14,959	$	9,326	$	7,443	$	16,769
Europe		-		183		183		-		842		842
Asia		-		137		137		-		88		88
Australia and Other		-		25		25		-		46		46
	$	8,962	$	6,342	$	15,304	$	9,326	$	8,419	$	17,745
Major Product Lines
Casino Gaming Revenues	$	7,816	$	-	$	7,816	$	8,189	$	-	$	8,189
Casino Non-Gaming Revenues		1,077		-		1,077		1,066		-		1,066
Professional Services		69		-		69		71		-		71
Aircraft Modification		-		3,836		3,836		-		5,782		5,782
Aircraft Avionics		-		715		715		-		875		875
Special Mission Electronics		-		1,791		1,791		-		1,762		1,762
	$	8,962	$	6,342	$	15,304	$	9,326	$	8,419	$	17,745
Contract Types / Revenue Recognition Timing
Percentage of completion contracts	$	-	$	3,251	$	3,251	$	-	$	5,275	$	5,275
Goods or services transferred at a point of sale		8,962		3,091		12,053		9,326		3,144		12,470
	$	8,962	$	6,342	$	15,304	$	9,326	$	8,419	$	17,745