Note 6 - Derivatives and Hedging Activities (Details) - Summary of Interest Rate Cap Derivatives - Cash Flow Hedging [Member] - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Interest Rate Cap 1 [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	$ 15,000,000
Fair value	321,112	$ 608,189
Interest Rate Cap 2 [Member] \| Other Assets [Member]
Derivatives, Fair Value [Line Items]
Notional amount	15,000,000
Fair value	534,912	879,198
Interest Rate Cap [Member]
Derivatives, Fair Value [Line Items]
Notional amount	30,000,000
Fair value	$ 856,024	$ 1,487,387

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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