Note 10 - Right-of-use Asset and Leasing Liabilities - Future Minimum Lease Obligations (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Mar. 31, 2019
Operating ROU Leases, 2020		$ 365
Finance ROU Leases, 2020		45
2020		410
Operating ROU Leases, 2021		360
Finance ROU Leases, 2021		11
2021		371
Operating ROU Leases, 2022		372
Finance ROU Leases, 2022
2022		372
Operating ROU Leases, 2023		383
Finance ROU Leases, 2023
2023		383
Operating ROU Leases, 2024		256
Finance ROU Leases, 2024
2024		256
Operating ROU Leases, Thereafter
Finance ROU Leases, Thereafter
Thereafter
Operating ROU Leases Undiscounted Obligation		1,736
Finance ROU Leases Undiscounted Obligation		56
Lessee, Operating and Finance Lease, Liability, Payments, Due		1,792
Operating ROU Leases, Less Interest*	[1]	(204)
Finance ROU Leases, Less Interest*	[1]	(2)
Operating ROU Leases		1,532	$ 1,744
Finance ROU Leases		$ 54

[1] Interest is imputed for operating ROU leases and classified as lease expense and is included in operating expenses in the accompanying condensed consolidated statement of operations.