Note 18 - Stock Based Compensation - Summary of Stock Option Activity (Details) - $ / shares				12 Months Ended
	Feb. 03, 2017	Nov. 01, 2016	Feb. 03, 2014	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Outstanding, beginning of period (in shares)				219,650	219,650
Outstanding, beginning of period (in dollars per share)				$ 13.85	$ 13.85
Outstanding, end of period (in dollars per share)				$ 13.84	$ 13.85	$ 13.85
Outstanding, beginning of period (Year)				7 years 36 days	7 years 292 days	8 years 292 days
Vested at end of year (in shares)				131,790	87,860
Vested at end of year (in dollars per share)				$ 13.85	$ 13.85
Vested at end of year (Year)				6 years 292 days	7 years 292 days
Granted (in shares)	3,700	19,000	225,150	22,700
Granted (in dollars per share)				$ 13.78
Granted (Year)				10 years
Exercised (in shares)
Exercised (in dollars per share)
Forfeited, exchanged or expired (in shares)
Forfeited, exchanged or expired (in dollars per share)
Outstanding, end of period (in shares)				242,350	219,650	219,650