Note 3 - Impaired Loans Leases (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015
Commercial Portfolio Segment [Member]
Recorded investment with no specific allowance recorded	$ 639,448		$ 639,448	$ 234,636
Unpaid principal balance with no specific allowance recorded	780,390		780,390	346,072
Average recorded investment with no specific allowance recorded	2,524,056	$ 320,187	3,197,308
Interest income recognized with no specific allowance recorded	3,519	1,860	5,343
Interest income recognized for cash payments received with no specific allowance recorded	3,519	1,860	5,343
Recorded investment with no specific allowance recorded	639,448		639,448	234,636
Unpaid principal balance with no specific allowance recorded	780,390		780,390	346,072
Average recorded investment with no specific allowance recorded	2,524,056	320,187	3,197,308
Interest income recognized with no specific allowance recorded	3,519	1,860	5,343
Interest income recognized for cash payments received with no specific allowance recorded	3,519	1,860	5,343
Recorded investment with specific allowance recorded	3,815,190		3,815,190	5,051,846
Unpaid principal balance with specific allowance recorded	3,819,029		3,819,029	5,055,685
Related allowance	1,242,430		1,242,430	2,592,270
Average recorded investment with specific allowance recorded	2,292,483	4,912,917	1,775,881
Recorded investment	4,454,638		4,454,638	5,286,482
Unpaid principal balance	4,599,419		4,599,419	5,401,757
Average recorded investment	4,816,539	5,233,104	4,973,189
Interest income recognized	3,519	1,860	5,343
Interest income recognized for cash payments received	3,519	1,860	5,343
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Recorded investment with no specific allowance recorded				256,761
Unpaid principal balance with no specific allowance recorded	93,774		93,774	350,535
Average recorded investment with no specific allowance recorded	121,444	550,374	163,216
Recorded investment with no specific allowance recorded				256,761
Unpaid principal balance with no specific allowance recorded	93,774		93,774	350,535
Average recorded investment with no specific allowance recorded	121,444	550,374	163,216
Recorded investment				256,761
Unpaid principal balance	93,774		93,774	350,535
Average recorded investment	121,444	550,374	163,216
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Unpaid principal balance with no specific allowance recorded				228,818
Average recorded investment with no specific allowance recorded		222,926
Unpaid principal balance with no specific allowance recorded				228,818
Average recorded investment with no specific allowance recorded		222,926
Recorded investment with specific allowance recorded	188,981		188,981	193,804
Unpaid principal balance with specific allowance recorded	200,981		200,981	205,804
Related allowance	79,911		79,911	76,934
Average recorded investment with specific allowance recorded	190,174	139,250	191,384
Recorded investment	188,981		188,981	193,804
Unpaid principal balance	200,981		200,981	434,622
Average recorded investment	190,174	362,176	191,384
Commercial Real Estate Portfolio Segment [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Recorded investment with no specific allowance recorded	1,516,555		1,516,555	1,578,470
Unpaid principal balance with no specific allowance recorded	1,516,555		1,516,555	1,578,470
Average recorded investment with no specific allowance recorded	1,311,540	2,474,448	1,243,616
Recorded investment with no specific allowance recorded	1,516,555		1,516,555	1,578,470
Unpaid principal balance with no specific allowance recorded	1,516,555		1,516,555	1,578,470
Average recorded investment with no specific allowance recorded	1,311,540	2,474,448	1,243,616
Recorded investment with specific allowance recorded	910,765		910,765
Unpaid principal balance with specific allowance recorded	910,765		910,765
Related allowance	43,168		43,168
Average recorded investment with specific allowance recorded	658,220	1,657,506	595,714
Recorded investment	2,427,320		2,427,320	1,578,470
Unpaid principal balance	2,427,320		2,427,320	1,578,470
Average recorded investment	1,969,760	4,131,954	1,839,330
Finance Leases Portfolio Segment [Member]
Recorded investment with no specific allowance recorded	1,652,661		1,652,661	871,884
Unpaid principal balance with no specific allowance recorded	1,652,661		1,652,661	871,884
Average recorded investment with no specific allowance recorded	1,510,987	582,316	1,398,419
Interest income recognized with no specific allowance recorded	19,897	1,878	31,500
Interest income recognized for cash payments received with no specific allowance recorded	19,897	1,878	31,500
Recorded investment with no specific allowance recorded	1,652,661		1,652,661	871,884
Unpaid principal balance with no specific allowance recorded	1,652,661		1,652,661	871,884
Average recorded investment with no specific allowance recorded	1,510,987	582,316	1,398,419
Interest income recognized with no specific allowance recorded	19,897	1,878	31,500
Interest income recognized for cash payments received with no specific allowance recorded	19,897	1,878	31,500
Recorded investment with specific allowance recorded	1,025,860		1,025,860	829,457
Unpaid principal balance with specific allowance recorded	1,025,860		1,025,860	829,457
Related allowance	555,819		555,819	306,193
Average recorded investment with specific allowance recorded	995,446	561,840	866,749
Recorded investment	2,678,521		2,678,521	1,701,341
Unpaid principal balance	2,678,521		2,678,521	1,701,341
Average recorded investment	2,506,433	1,144,156	2,265,168
Interest income recognized	19,897	1,878	31,500
Interest income recognized for cash payments received	19,897	1,878	31,500
Residential Portfolio Segment [Member]
Recorded investment with no specific allowance recorded	672,061		672,061	613,486
Unpaid principal balance with no specific allowance recorded	711,262		711,262	649,064
Average recorded investment with no specific allowance recorded	621,354	969,580	627,715
Interest income recognized with no specific allowance recorded	1,013		2,051
Interest income recognized for cash payments received with no specific allowance recorded	1,013		2,051
Recorded investment with no specific allowance recorded	672,061		672,061	613,486
Unpaid principal balance with no specific allowance recorded	711,262		711,262	649,064
Average recorded investment with no specific allowance recorded	621,354	969,580	627,715
Interest income recognized with no specific allowance recorded	1,013		2,051
Interest income recognized for cash payments received with no specific allowance recorded	1,013		2,051
Recorded investment with specific allowance recorded	912,952		912,952	805,301
Unpaid principal balance with specific allowance recorded	948,530		948,530	805,301
Related allowance	198,020		198,020	185,801
Average recorded investment with specific allowance recorded	919,271	869,073	872,297
Interest income recognized with specific allowance recorded	1,948	1,967	3,906
Interest income recognized for cash payments received with specific allowance recorded	1,948	1,967	3,906
Recorded investment	1,585,013		1,585,013	1,418,787
Unpaid principal balance	1,659,792		1,659,792	1,454,365
Average recorded investment	1,540,625	1,838,653	1,500,012
Interest income recognized	2,961	1,967	5,957
Interest income recognized for cash payments received	2,961	1,967	5,957
Consumer Portfolio Segment [Member]
Recorded investment with no specific allowance recorded	231,730		231,730	377,304
Unpaid principal balance with no specific allowance recorded	231,730		231,730	377,304
Average recorded investment with no specific allowance recorded	229,207	705,750	281,740
Interest income recognized with no specific allowance recorded		475
Interest income recognized for cash payments received with no specific allowance recorded		475
Recorded investment with no specific allowance recorded	231,730		231,730	377,304
Unpaid principal balance with no specific allowance recorded	231,730		231,730	377,304
Average recorded investment with no specific allowance recorded	229,207	705,750	281,740
Interest income recognized with no specific allowance recorded		475
Interest income recognized for cash payments received with no specific allowance recorded		475
Recorded investment with specific allowance recorded	214,567		214,567	210,438
Unpaid principal balance with specific allowance recorded	214,567		214,567	210,438
Related allowance	138,490		138,490	143,089
Average recorded investment with specific allowance recorded	218,742	608,277	212,806
Interest income recognized with specific allowance recorded	1,468	2,252	2,968
Interest income recognized for cash payments received with specific allowance recorded	1,468	2,252	2,968
Recorded investment	446,297		446,297	587,742
Unpaid principal balance	446,297		446,297	587,742
Average recorded investment	447,949	1,314,027	494,546
Interest income recognized	1,468	2,727	2,968
Interest income recognized for cash payments received	1,468	2,727	2,968
Recorded investment with no specific allowance recorded	4,712,455		4,712,455	3,932,541
Unpaid principal balance with no specific allowance recorded	4,986,372		4,986,372	4,402,147
Average recorded investment with no specific allowance recorded	6,318,588	5,825,581	6,912,014
Interest income recognized with no specific allowance recorded	24,429	4,213	38,894
Interest income recognized for cash payments received with no specific allowance recorded	24,429	4,213	38,894
Recorded investment with no specific allowance recorded	4,712,455		4,712,455	3,932,541
Unpaid principal balance with no specific allowance recorded	4,986,372		4,986,372	4,402,147
Average recorded investment with no specific allowance recorded	6,318,588	5,825,581	6,912,014
Interest income recognized with no specific allowance recorded	24,429	4,213	38,894
Interest income recognized for cash payments received with no specific allowance recorded	24,429	4,213	38,894
Recorded investment with specific allowance recorded	7,068,315		7,068,315	7,090,846
Unpaid principal balance with specific allowance recorded	7,119,732		7,119,732	7,106,685
Related allowance	2,257,838		2,257,838	3,304,287
Average recorded investment with specific allowance recorded	5,274,336	8,748,863	4,514,831
Interest income recognized with specific allowance recorded	3,416	4,219	6,874
Interest income recognized for cash payments received with specific allowance recorded	3,416	4,219	6,874
Recorded investment	11,780,770		11,780,770	11,023,387
Unpaid principal balance	12,106,104		12,106,104	$ 11,508,832
Average recorded investment	11,592,924	14,574,444	11,426,845
Interest income recognized	27,845	8,432	45,768
Interest income recognized for cash payments received	$ 27,845	$ 8,432	$ 45,768