Note 11 - Accrued Expenses (Detail) - Accrued expenses consist of the following: (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Mar. 31, 2012
Accrued accounts payable	$ 9,009	$ 4,597
Employee compensation and benefits	5,056	3,865
Accrued distributor fees	3,588	3,268
Commissions	2,247	2,278
Other accrued liabilities	963	2,304
Freight and duty	901	878
Professional fees	741	945
Total accrued expenses	$ 22,505	$ 18,135