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Share-Based Compensation (Details Narrative) - USD ($)		1 Months Ended	3 Months Ended		6 Months Ended
Share-Based Compensation (Details Narrative) - USD ($)	Feb. 09, 2022	Feb. 29, 2024	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023	Apr. 30, 2023	Jan. 18, 2018	Dec. 31, 2015
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation of weighted-average period					1 year
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Intrinsic value of outstanding options			$ 0		$ 0
Intrinsic value of exercisable options			$ 0		$ 0
Options unvested			164,000		164,000
Unvested options intrinsic value			$ 0		$ 0
Weighted average remaining contractual term					8 years
Share-based payment arrangement, expense			7,000	$ 20,000	$ 26,000	$ 98,000
Unrecognized compensation cost related to non-vested stock			56,000		56,000
Performance Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options unvested							66,667
Share-based payment arrangement, expense					0	43,000
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based payment arrangement, expense			285,000	$ 252,000	$ 525,000	$ 532,000
Share-based compensation of weighted-average period					1 year 3 months 18 days
Number of restricted shares, granted					0	58,000
Unrecognized compensation cost			$ 667,000		$ 667,000
2015 Omnibus Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation arrangement shares authorized			7,282,036		7,282,036				1,332,036
Share-based compensation arrangement shares authorized increase		2,900,000
2018 Inducement Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation arrangement shares authorized	250,000
Share-based compensation arrangement shares authorized increase	275,000
Common Stock, Capital Shares Reserved for Future Issuance								25,000