Note 4 - Accrued Expenses and Other Current Liabilities - Major Classifications of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Accrued sales tax	$ 323	$ 449
Accrued credit card fees	404	381
Accrued salaries and benefits	685	966
Accrued professional expenses	281	320
Accrued sales return allowance	184	191
Accrued dividends payable	203	240
Accrued real estate taxes	87	87
Other accrued liabilities	184	201
Accrued expenses and other current liabilities	$ 2,351	$ 2,835