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OTHER ASSETS (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Apr. 30, 2020
OTHER ASSETS
Prepaid expenses	$ 874	$ 464
Receivables	44	156
Right-of-use assets associated with leases of office facilities	109	109
Other assets	170	170
Property and equipment	219	217
Less accumulated depreciation	(191)	(182)
Property and equipment, net	28	35
Other Assets	$ 1,225	$ 934

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Amount, after allowance for credit loss, of accounts and financing receivable. Includes, but is not limited to, notes and loan receivable.

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount of assets classified as other.

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Amount of other miscellaneous assets.

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Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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