Note 10 - Leases (Details Textual) $ in Thousands, د.إ in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Apr. 30, 2022 USD ($)	Oct. 31, 2020 AED (د.إ)	Jan. 31, 2020 USD ($)	Jan. 31, 2018 USD ($)	Jan. 31, 2022 USD ($)	Oct. 31, 2020 USD ($)	Jan. 31, 2020 CAD ($)	Jan. 31, 2018 CAD ($)
Operating Lease, Liability, Total	$ 8,569				$ 12,766
Operating Lease, Right-of-Use Asset	7,712				11,213
Finance Lease, Liability, Total	436				$ 530
Operating Lease, Expense	100
Other Assets [Member]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total	700
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Year)					30 years
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Year)					1 year
Finance Vehicle Equipment, One [Member]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total			$ 800	$ 800			$ 1.1	$ 1.1
Interest Rate for Finance Lease			8.00%				8.00%
Finance Vehicle Equipment, One [Member] | Maximum [Member]
Interest Rate for Finance Lease				7.80%				7.80%
Finance Lease, Principal Payments and Interest Payment on Liability			$ 100	$ 100
Finance Vehicle Equipment, One [Member] | Minimum [Member]
Interest Rate for Finance Lease				4.00%				4.00%
Abu Dhabi Land Lease [Member]
Lessee, Operating Lease, Annual Payment	300	د.إ 1.2
Decrease in Operating Lease Liability, Current						$ 300
Decrease in Operating Lease Liability, Noncurrent	4,000
Decrease in Operating Lease Right-of-use Asset	3,600
Decrease in Operating Lease Expense	$ 800