Commitments - Schedule of Aircraft Purchase Commitments (Details)	12 Months Ended
	May 31, 2022 AirCraft
Schedule of Aircraft Commitments [Line Items]
2023	38
2024	36
2025	30
2026	15
Total	119
Cessna SkyCourier 408 [Member]
Schedule of Aircraft Commitments [Line Items]
2023	11
2024	12
2025	12
2026	14
Total	49
ATR 72-600F [Member]
Schedule of Aircraft Commitments [Line Items]
2023	11
2024	6
2025	6
2026	1
Total	24
B767F [Member]
Schedule of Aircraft Commitments [Line Items]
2023	14
2024	14
2025	10
Total	38
B777F [Member]
Schedule of Aircraft Commitments [Line Items]
2023	2
2024	4
2025	2
Total	8