Note 8 - Accrued Expenses - Components of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Wages, commissions, bonus and profit sharing	$ 286	$ 295
Vacation	375	301
Rent, interest and legal	134	76
Other accrued expenses	183	177
Total accrued expenses	$ 978	$ 849