Note 3 - Loans Leases Receivable - Troubled Debt Restructurings (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Pre-Modification Recorded Investment	$ 948,170	$ 1,842,858	$ 1,757,983	$ 2,299,450
Post-Modification Recorded Investment	948,170	1,842,858	1,757,983	2,299,450
Specific Allowance
Number of Loans / Leases	17	7	28	12
Extended Maturity [Member]
Pre-Modification Recorded Investment	$ 98,119	$ 52,286	$ 104,382	$ 462,939
Post-Modification Recorded Investment	98,119	52,286	104,382	462,939
Specific Allowance
Number of Loans / Leases	1	1	2	5
Payment Deferral [Member]
Pre-Modification Recorded Investment	$ 850,051	$ 556,832	$ 1,653,601	$ 602,771
Post-Modification Recorded Investment	850,051	556,832	1,653,601	602,771
Specific Allowance
Number of Loans / Leases	16	5	26	6
Interest Rate Below Market Reduction [Member]
Pre-Modification Recorded Investment		$ 1,233,740		$ 1,233,740
Post-Modification Recorded Investment		1,233,740		1,233,740
Specific Allowance
Number of Loans / Leases		1		1
Commercial Portfolio Segment [Member] \| Extended Maturity [Member]
Pre-Modification Recorded Investment		$ 52,286		$ 52,286
Post-Modification Recorded Investment		52,286		52,286
Specific Allowance
Number of Loans / Leases		1		1
Commercial Portfolio Segment [Member] \| Payment Deferral [Member]
Pre-Modification Recorded Investment	$ 47,509	$ 62,140	$ 181,198	$ 62,140
Post-Modification Recorded Investment	47,509	62,140	181,198	62,140
Specific Allowance
Number of Loans / Leases	1	1	3	1
Commercial Portfolio Segment [Member] \| Interest Rate Below Market Reduction [Member]
Pre-Modification Recorded Investment		$ 1,233,740		$ 1,233,740
Post-Modification Recorded Investment		1,233,740		1,233,740
Specific Allowance
Number of Loans / Leases		1		1
Finance Leases Portfolio Segment [Member] \| Extended Maturity [Member]
Pre-Modification Recorded Investment	$ 98,119		$ 104,382	$ 410,653
Post-Modification Recorded Investment	98,119		104,382	410,653
Specific Allowance
Number of Loans / Leases	1		2	4
Finance Leases Portfolio Segment [Member] \| Payment Deferral [Member]
Pre-Modification Recorded Investment	$ 802,542	$ 494,692	$ 1,472,403	$ 540,631
Post-Modification Recorded Investment	802,542	494,692	1,472,403	540,631
Specific Allowance
Number of Loans / Leases	15	4	23	5

Specific allowance of amount of investment in financing receivables modified by troubled debt restructurings.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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+ References

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+ References

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