Note 5 - Leases (Details) $ in Thousands	Jun. 30, 2021 USD ($) lease	Jun. 30, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Term of financing leases	36 months
Number of operating leases | lease	1
Financeing lease right-of-use assets	$ 5,750
Total right-of-use assets	5,813	$ 110
Finance Lease, Liability, Current	1,748
Finance Lease, Liability, Noncurrent	3,584
Present value of lease obligations	5,395	110
Other assets.
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	63	110
Other current liabilities
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	$ 63	79
Other long-term liabilities.
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent		$ 31