Note 3 - Stock-based Compensation (Details) - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards (USD $)	Mar. 31, 2015	Mar. 31, 2014
Note 3 - Stock-based Compensation (Details) - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards [Line Items]
	$ 0	$ 0
2015 [Member] \| Restricted Stock [Member]
Note 3 - Stock-based Compensation (Details) - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards [Line Items]
2015	58,127
2016	77,503
2017	77,503
2018	77,503
2019	9,688
	300,324
2014 [Member] \| Restricted Stock [Member]
Note 3 - Stock-based Compensation (Details) - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards [Line Items]
2015	58,130
2016	77,506
2017	77,506
2018	9,688
	222,830
Restricted Stock [Member]
Note 3 - Stock-based Compensation (Details) - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards [Line Items]
2015	116,257
2016	155,009
2017	155,009
2018	87,191
2019	9,688
	$ 523,154	$ 310,025

Unrecognized cost of unvested share-based compensation awards due during the remainder of the fiscal year.

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards due in five years.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards due in three years.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards due in two years.

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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