Note 15 - Subsequent Event	12 Months Ended
Oct. 31, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	Note 15 – Subsequent event On December 16, 2021, the Company entered into a Membership Interest Purchase Agreement (the “Purchase Agreement”) with Wireless Telecom Group, Inc, a New Jersey corporation (“Seller”), and its wholly-owned subsidiary Microlab/FXR LLC, a New Jersey limited liability company (“Microlab”). Under the Purchase Agreement, the Company has agreed to purchase 100% of the issued and outstanding membership interests of Microlab from Seller. The purchase price for Microlab is estimated to be $24,250,000, subject to certain closing adjustments as set forth in the Purchase Agreement. The Company intends to pay the purchase price using a combination of cash on hand and borrowings from a credit facility. The Company has received a non-binding commitment letter from a major commercial bank pursuant to which the Company is seeking to obtain an up to $20,000,000 credit facility, a portion of which will be used to fund the purchase of Microlab. The purchase of Microlab is subject to customary closing conditions and to the approval by the holders of a majority of the voting shares of Seller. The acquisition currently is expected to be completed by the end of April 2022, subject to a 30-day extension under certain circumstances.

Note 15 - Subsequent Event

12 Months Ended

Oct. 31, 2021

Note 15 – Subsequent event

On December 16, 2021, the Company entered into a Membership Interest Purchase Agreement (the “Purchase Agreement”) with Wireless Telecom Group, Inc, a New Jersey corporation (“Seller”), and its wholly-owned subsidiary Microlab/FXR LLC, a New Jersey limited liability company (“Microlab”). Under the Purchase Agreement, the Company has agreed to purchase 100% of the issued and outstanding membership interests of Microlab from Seller. The purchase price for Microlab is estimated to be $24,250,000, subject to certain closing adjustments as set forth in the Purchase Agreement. The Company intends to pay the purchase price using a combination of cash on hand and borrowings from a credit facility. The Company has received a non-binding commitment letter from a major commercial bank pursuant to which the Company is seeking to obtain an up to $20,000,000 credit facility, a portion of which will be used to fund the purchase of Microlab. The purchase of Microlab is subject to customary closing conditions and to the approval by the holders of a majority of the voting shares of Seller. The acquisition currently is expected to be completed by the end of April 2022, subject to a 30-day extension under certain circumstances.