Note 5 - Capitalized Software Development Costs (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Capitalized Computer Software, Period Increase (Decrease)	$ 500	$ 300	$ 1,300	$ 1,100
Capitalized Computer Software, Amortization	300	$ 100	800	400
Unamortized Balance of Capitalized Software	$ 2,100		2,100		$ 1,700
Capitalized Computer Software, Impairments			$ 0	$ 0
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life			3 years