Note 7 - Deposit (Details Textual) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 24, 2025	Apr. 30, 2025	Apr. 19, 2025
Prepaid Expenses and Other Current Assets [Member]
Deposits Assets, Current	$ 0.8
Settlement and Mutual Release Agreement [Member]
Escrow To Be Released	$ 0.8
TBB Crescent Park Drive LLC (TBB CPD) [Member]
Deposits Assets, Current			$ 1.4	$ 1.4
Earnest Money Demanded		$ 3.0