Note 6. Leases - Supplemental Cash Flow relating to Leases (Details) $ in Millions	3 Months Ended
	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating Lease, Payments	$ 1.2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0.1
Operating Lease, Weighted Average Remaining Lease Term	6 years 1 month
Operating Lease, Weighted Average Discount Rate, Percent	4.60%