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Note 4 - Accrued Expenses (Details) - Components of Accrued Expenses (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Components of Accrued Expenses [Abstract]    
Wages and profit sharing $ 474 $ 582
Customer rebates 84 55
Other accrued expenses 221 137
$ 779 $ 774