FINANCING ARRANGEMENTS: Sale and Leaseback Transaction (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Mar. 31, 2019	Nov. 30, 2018
Debt Disclosure [Abstract]
Term of contract			10 years	15 years
Short-term financial liability	$ 0.9	$ 0.9
Weighted average lease term	14 years 1 month 6 days	14 years 1 month 6 days
Weighted average discount rate	3.46%	3.46%
Interest expense	$ 0.3	$ 0.5