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Note 10 - Income Taxes (Details Textual) - USD ($)	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]
Undistributed Earnings of Foreign Subsidiaries	$ 794,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards	0
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	2,309,000
Unrecognized Tax Benefits	221,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 3,000	$ 0	$ 0

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.

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