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Schedule of Operating Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Leases
Operating lease cost	$ 92	$ 79	$ 276	$ 238
Short-term lease cost	12	7	22	12
Total lease cost	$ 104	$ 86	$ 298	$ 250

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No definition available.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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