Note 15 - Other Matters	9 Months Ended
Note 15 - Other Matters	Dec. 31, 2012
Commitments and Contingencies Disclosure [Text Block]	Note 15. Other Matters The Company is involved in two product liability cases, which are covered by insurance. While the results of these lawsuits cannot be predicted with certainty, management does not expect that the ultimate liabilities, if any, will have a material adverse effect on the financial position or results of operations of the Company.

The entire disclosure for commitments and contingencies.

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