Note 3 - Loans/Leases Receivable (Details) - Additional Information on Impaired Loans (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	$ 7,370,591	$ 6,757,674	$ 2,565,810
Impaired loans with no related allowance unpaid principal balance	7,569,679	7,057,203	2,938,193
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	10,500,956	12,322,746	15,779,852
Impaired loans with related allowance unpaid principal balance	11,808,113	13,838,755	16,085,745
Impaired loans related allowance	4,365,071	5,008,822	4,543,756
Total Impaired Loans/Leases:
Impaired loans recorded investment	17,871,547	19,080,420	18,345,662
Impaired loans unpaid principal balance	19,377,792	20,895,958	19,023,938
Impaired loans related allowance	4,365,071	5,008,822	4,543,756
Commercial and Industrial [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	441,945	492,622	402,621
Impaired loans with no related allowance unpaid principal balance	517,833	568,951	775,004
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	958,813	1,269,228	211,400
Impaired loans with related allowance unpaid principal balance	1,449,488	1,956,755	264,334
Impaired loans related allowance	732,427	927,453	498,260
Total Impaired Loans/Leases:
Impaired loans recorded investment	1,400,758	1,761,850	614,021
Impaired loans unpaid principal balance	1,967,321	2,525,706	1,039,338
Impaired loans related allowance	732,427	927,453	498,260
Owner-Occupied Commercial Real Estate [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	389,876	392,542	498,946
Impaired loans with no related allowance unpaid principal balance	389,876	392,542	498,946
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	224,892	159,247
Impaired loans with related allowance unpaid principal balance	224,892	159,247
Impaired loans related allowance	117,555	67,498
Total Impaired Loans/Leases:
Impaired loans recorded investment	614,768	551,789	498,946
Impaired loans unpaid principal balance	614,768	551,789	498,946
Impaired loans related allowance	117,555	67,498
Commercial Construction, Land Development, and Other Land [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	2,124,350	1,943,168
Impaired loans with no related allowance unpaid principal balance	2,247,550	2,054,368
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	685,292	888,547	3,929,839
Impaired loans with related allowance unpaid principal balance	796,492	1,011,747	3,929,839
Impaired loans related allowance	477,293	503,825	1,154,155
Total Impaired Loans/Leases:
Impaired loans recorded investment	2,809,642	2,831,715	3,929,839
Impaired loans unpaid principal balance	3,044,042	3,066,115	3,929,839
Impaired loans related allowance	477,293	503,825	1,154,155
Non-Owner Occupied Commercial Real Estate [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	1,983,846	1,790,279	47,958
Impaired loans with no related allowance unpaid principal balance	1,983,846	1,902,279	47,958
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	6,668,048	7,783,132	9,983,944
Impaired loans with related allowance unpaid principal balance	7,373,330	8,488,414	10,236,903
Impaired loans related allowance	2,117,624	2,603,381	2,353,684
Total Impaired Loans/Leases:
Impaired loans recorded investment	8,651,894	9,573,411	10,031,902
Impaired loans unpaid principal balance	9,357,176	10,390,693	10,284,861
Impaired loans related allowance	2,117,624	2,603,381	2,353,684
Finance Leases Portfolio Segment [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	619,800	557,469	789,346
Impaired loans with no related allowance unpaid principal balance	619,800	557,469	789,346
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	700,842	336,989	421,590
Impaired loans with related allowance unpaid principal balance	700,842	336,989	421,590
Impaired loans related allowance	298,303	192,847	325,294
Total Impaired Loans/Leases:
Impaired loans recorded investment	1,320,642	894,458	1,210,936
Impaired loans unpaid principal balance	1,320,642	894,458	1,210,936
Impaired loans related allowance	298,303	192,847	325,294
Residential Portfolio Segment [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	977,436	1,071,927	630,324
Impaired loans with no related allowance unpaid principal balance	977,436	1,071,927	630,324
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	866,172	1,044,820	305,612
Impaired loans with related allowance unpaid principal balance	866,172	1,044,820	305,612
Impaired loans related allowance	224,972	246,266	95,232
Total Impaired Loans/Leases:
Impaired loans recorded investment	1,843,608	2,116,747	935,936
Impaired loans unpaid principal balance	1,843,608	2,116,747	935,936
Impaired loans related allowance	224,972	246,266	95,232
Consumer Portfolio Segment [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Impaired loans with no related allowance recorded investment	833,338	509,667	196,615
Impaired loans with no related allowance unpaid principal balance	833,338	509,667	196,615
Impaired Loans/Leases with Specific Allowance Recorded:
Impaired loans with related allowance recorded investment	396,897	840,783	927,467
Impaired loans with related allowance unpaid principal balance	396,897	840,783	927,467
Impaired loans related allowance	396,897	467,552	117,131
Total Impaired Loans/Leases:
Impaired loans recorded investment	1,230,235	1,350,450	1,124,082
Impaired loans unpaid principal balance	1,230,235	1,350,450	1,124,082
Impaired loans related allowance	$ 396,897	$ 467,552	$ 117,131