Note 4 - Accrued Expenses and Other Current Liabilities - Major Classifications of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Accrued sales tax	$ 449	$ 450
Accrued credit card fees	381	364
Accrued salaries and benefits	966	639
Accrued professional expenses	320	245
Accrued sales return allowance	191	180
Accrued dividends payable	240	217
Accrued real estate taxes	87	236
Other accrued liabilities	201	144
Accrued expenses and other current liabilities	$ 2,835	$ 2,475