Note 8 - Revenue (Details) - T T in Millions	Dec. 31, 2023	Sep. 30, 2022
Contracts with Indexed Based Pricing Mechanisms
REVENUES
Outstanding performance obligation, mass		0.3
Contracts with Indexed Based Pricing Mechanisms | Forecast
REVENUES
Outstanding performance obligation, mass	0.1
Fixed Priced Contracts
REVENUES
Outstanding performance obligation, mass		0.5
Fixed Priced Contracts | Forecast
REVENUES
Outstanding performance obligation, mass	1.4