Note 4 - Derivatives and Hedging Activities (Details) - Summary of Interest Rate Cap Derivatives - Cash Flow Hedging [Member] - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Interest Rate Cap 1 [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 15,000,000
Fair value	271,913	$ 608,189
Interest Rate Cap 2 [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	15,000,000
Fair value	512,742	879,197
Interest Rate Cap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	30,000,000
Fair value	$ 784,655	$ 1,487,386

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

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+ References

No definition available.

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- Definition

Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959

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