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Note 12 - Derivatives and Fair Value Disclosures - Fair Value of Assets and Liabilities Measured on a Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Derivatives	$ 518,644	$ (101,188)
Fair Value, Inputs, Level 1 [Member]
Derivatives
Fair Value, Inputs, Level 2 [Member]
Derivatives	518,644	(101,188)
Fair Value, Inputs, Level 3 [Member]
Derivatives
Interest Rate Swap 1 [Member]
Derivatives	645,169	263,635
Interest Rate Swap 1 [Member] | Fair Value, Inputs, Level 1 [Member]
Derivatives
Interest Rate Swap 1 [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives	645,169	263,635
Interest Rate Swap 1 [Member] | Fair Value, Inputs, Level 3 [Member]
Derivatives
Interest Rate Swap 2 [Member]
Derivatives	(126,525)	(364,823)
Interest Rate Swap 2 [Member] | Fair Value, Inputs, Level 1 [Member]
Derivatives
Interest Rate Swap 2 [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives	(126,525)	(364,823)
Interest Rate Swap 2 [Member] | Fair Value, Inputs, Level 3 [Member]
Derivatives

X

- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

+ Details

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