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Supplemental Cash Flow Information - Cash Flow Changes in Operating Asset and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Supplemental Cash Flow Information
Trade accounts receivable	$ (1,624)	$ 316	$ (4,544)	$ 1,419
Other accounts receivable	2,532	804	2,349	2,512
Prepaid expenses and other	(286)	(3,016)	493	(3,543)
Inventory	(18)	(166)	36	(338)
Accounts payable	(293)	(94)	(1,135)	(214)
Accrued liabilities	(1,783)	5,379	(3,862)	4,467
Income taxes payable	(296)	1,295	127	(308)
Operating leases	(44)	(240)	(153)	43
Deferred revenue	2,794	1,426	7,411	4,044
Increase (Decrease) in Operating Capital, Total	$ 982	$ 5,704	$ 722	$ 8,082

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- Definition

The amount of increase (decrease) in operating lease liabilities.

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The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.

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Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.

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Amount of increase (decrease) in receivables classified as other.

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Amount of increase (decrease) in prepaid expenses, and assets classified as other.

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