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Note 7 - Common Stock Issuance (Detail) (USD $)	0 Months Ended	1 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended	9 Months Ended
	Apr. 30, 2012	Apr. 17, 2012	Aug. 12, 2011	Apr. 30, 2012	Jul. 31, 2012	Sep. 30, 2012	Sep. 30, 2011
Stock Issued During Period, Shares, New Issues	103,585	93,050	85,200		400,000	196,635
Sale of Stock, Price Per Share (in Dollars per share)	$ 16	$ 16		$ 16		$ 19
Proceeds from Issuance of Common Stock (in Dollars)	$ 1,657,360	$ 1,488,800				$ 2,329,000	$ 2,210,000
Payments of Stock Issuance Costs (in Dollars)				$ 816,000		$ 816,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			4.90%
Additional Shares to be Purchased			33,700
Share Price (in Dollars per share)						$ 16

X

- Definition

Additional shares to be purchased.

+ References

No definition available.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

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X

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 18, 19, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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The cash inflow from the additional capital contribution to the entity.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 19

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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-Paragraph 29, 30

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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