Note 12 - Issuance of Redeemable Restricted Common Stock (Details Textual) - USD ($)		1 Months Ended	9 Months Ended
Jul. 07, 2025	Jul. 31, 2025	Jul. 31, 2025	Jul. 31, 2024
Proceeds from Issuance of Common Stock		$ 1,907,517	$ 1,907,517	$ 0
Payments of Stock Issuance Costs		92,483
Temporary Equity, Aggregate Amount of Redemption Requirement		$ 3,200,000	$ 3,200,000
Lightera, LLC [Member]
Temporary Equity, Shares Outstanding (in shares)	642,199
Proceeds from Issuance of Common Stock	$ 2,000,000

- Definition

Aggregate amount of redemption requirements for each class or type of redeemable stock classified as temporary equity for each of the five years following the latest balance sheet date. The redemption requirement does not constitute an unconditional obligation that will be settled in a variable number of shares constituting a monetary value predominantly indexed to (a) a fixed monetary amount known at inception, (b) an amount inversely correlated with the residual value of the entity, or (c) an amount determined by reference to something other than the fair value of issuer's stock. Does not include mandatorily redeemable stock. The exception is if redemption is required upon liquidation or termination of the reporting entity.

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