Note 5 - Accrued Expenses - Components of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Wages, commissions, bonus and profit sharing	$ 812	$ 793
Rent and utilities	98	69
Other accrued expenses	102	151
Total accrued expenses	$ 1,012	$ 1,013