Note 4 - Loans Leases Receivable - Troubled Debt Restructurings (Details)	12 Months Ended
Dec. 31, 2018 USD ($) loan	Dec. 31, 2017 USD ($) loan
Number of Loans / Leases	14	35
Pre-Modification Recorded Investment	$ 4,122,953	$ 2,752,344
Post-Modification Recorded Investment	4,122,953	2,752,344
Specific Allowance	$ 1,810,449	$ 62,596
Payment Deferral [Member]
Number of Loans / Leases \| loan	10	32
Pre-Modification Recorded Investment	$ 1,047,035	$ 2,637,108
Post-Modification Recorded Investment	1,047,035	2,637,108
Specific Allowance	$ 310,000	$ 62,596
Payment Deferral [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 107,322
Post-Modification Recorded Investment		$ 107,322
Payment Deferral [Member] \| Other Non-owner Occupied Commercial Real Estate Loans [Member]
Number of Loans / Leases \| loan	1
Pre-Modification Recorded Investment	$ 500,000
Post-Modification Recorded Investment	500,000
Specific Allowance	$ 60,000
Extended Maturity [Member]
Number of Loans / Leases \| loan	4	3
Pre-Modification Recorded Investment	$ 3,075,918	$ 115,236
Post-Modification Recorded Investment	3,075,918	$ 115,236
Specific Allowance	$ 1,500,449
Extended Maturity [Member] \| Other Non-owner Occupied Commercial Real Estate Loans [Member]
Number of Loans / Leases \| loan	2
Pre-Modification Recorded Investment	$ 2,975,703
Post-Modification Recorded Investment	2,975,703
Specific Allowance	$ 1,492,057
Finance Leases Portfolio Segment [Member] \| Payment Deferral [Member]
Number of Loans / Leases \| loan	3	24
Pre-Modification Recorded Investment	$ 75,066	$ 1,703,255
Post-Modification Recorded Investment	$ 75,066	$ 1,703,255
Finance Leases Portfolio Segment [Member] \| Extended Maturity [Member]
Number of Loans / Leases \| loan		3
Pre-Modification Recorded Investment		$ 115,236
Post-Modification Recorded Investment		$ 115,236
Commercial Portfolio Segment [Member] \| Payment Deferral [Member]
Number of Loans / Leases \| loan	5	7
Pre-Modification Recorded Investment	$ 425,649	$ 826,531
Post-Modification Recorded Investment	425,649	826,531
Specific Allowance	$ 250,000	$ 62,596
Residential Portfolio Segment [Member] \| Payment Deferral [Member]
Number of Loans / Leases \| loan	1
Pre-Modification Recorded Investment	$ 46,320
Post-Modification Recorded Investment	$ 46,320
Residential Portfolio Segment [Member] \| Extended Maturity [Member]
Number of Loans / Leases \| loan	2
Pre-Modification Recorded Investment	$ 100,215
Post-Modification Recorded Investment	100,215
Specific Allowance	$ 8,392

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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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- Definition

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+ References

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