Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	$ 3,339,899	$ 3,130,879	$ 7,370,591
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	5,143,621	3,434,385	7,569,679
Impaired loans/leases with specific allowance recorded, recorded investment	11,763,877	15,875,762	10,500,956
Impaired loans/leases with specific allowance recorded, unpaid principal balance	12,226,348	18,008,843	11,808,113
Impaired loans/leases, related allowance	4,072,935	5,244,673	4,365,071
Impaired loans/leases, recorded investment	15,103,776	19,006,641	17,871,547
Impaired loans/leases, unpaid principal balance	17,369,969	21,443,228	19,377,792
Commercial and Industrial [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	331,612	246,308	441,945
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	425,636	342,391	517,833
Impaired loans/leases with specific allowance recorded, recorded investment	4,969,554	7,033,401	958,813
Impaired loans/leases with specific allowance recorded, unpaid principal balance	4,973,392	8,190,495	1,449,488
Impaired loans/leases, related allowance	2,513,023	3,300,199	732,427
Impaired loans/leases, recorded investment	5,301,166	7,279,709	1,400,758
Impaired loans/leases, unpaid principal balance	5,399,028	8,532,886	1,967,321
Owner-Occupied Commercial Real Estate [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	173,131	67,415	389,876
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	269,354	163,638	389,876
Impaired loans/leases with specific allowance recorded, recorded investment	454,980	620,896	224,892
Impaired loans/leases with specific allowance recorded, unpaid principal balance	454,980	620,896	224,892
Impaired loans/leases, related allowance	15,154	4,462	117,555
Impaired loans/leases, recorded investment	628,111	688,311	614,768
Impaired loans/leases, unpaid principal balance	724,334	784,534	614,768
Commercial Construction, Land Development, and Other Land [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	171,186	31,936	2,124,350
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	511,204	143,136	2,247,550
Impaired loans/leases with specific allowance recorded, recorded investment	197,225	337,076	685,292
Impaired loans/leases with specific allowance recorded, unpaid principal balance	209,225	577,894	796,492
Impaired loans/leases, related allowance	46,570	12,087	477,293
Impaired loans/leases, recorded investment	368,411	369,012	2,809,642
Impaired loans/leases, unpaid principal balance	720,429	721,030	3,044,042
Non-Owner Occupied Commercial Real Estate [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	290,577	491,717	1,983,846
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	1,528,456	491,717	1,983,846
Impaired loans/leases with specific allowance recorded, recorded investment	4,208,602	5,884,343	6,668,048
Impaired loans/leases with specific allowance recorded, unpaid principal balance	4,655,235	6,583,934	7,373,330
Impaired loans/leases, related allowance	767,113	1,153,471	2,117,624
Impaired loans/leases, recorded investment	4,499,179	6,376,060	8,651,894
Impaired loans/leases, unpaid principal balance	6,183,691	7,075,651	9,357,176
Finance Leases Portfolio Segment [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	665,735	561,414	619,800
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	665,735	561,414	619,800
Impaired loans/leases with specific allowance recorded, recorded investment	457,463	777,858	700,842
Impaired loans/leases with specific allowance recorded, unpaid principal balance	457,463	777,858	700,842
Impaired loans/leases, related allowance	283,485	356,996	298,303
Impaired loans/leases, recorded investment	1,123,198	1,339,272	1,320,642
Impaired loans/leases, unpaid principal balance	1,123,198	1,339,272	1,320,642
Residential Portfolio Segment [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	981,608	1,060,770	977,436
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	1,017,186	1,060,770	977,436
Impaired loans/leases with specific allowance recorded, recorded investment	864,957	727,959	866,172
Impaired loans/leases with specific allowance recorded, unpaid principal balance	864,957	763,537	866,172
Impaired loans/leases, related allowance	180,160	151,663	224,972
Impaired loans/leases, recorded investment	1,846,565	1,788,729	1,843,608
Impaired loans/leases, unpaid principal balance	1,882,143	1,824,307	1,843,608
Consumer Portfolio Segment [Member]
Note 3 - Loans/Leases Receivable (Details) - Loans/Leases by Classes of Financing Receivable [Line Items]
Impaired loans/leases with no specific allowance recorded, recorded investment	726,050	671,319	833,338
Impaired loans/leases with no specific allowance recorded, unpaid principal balance	726,050	671,319	833,338
Impaired loans/leases with specific allowance recorded, recorded investment	611,096	494,229	396,897
Impaired loans/leases with specific allowance recorded, unpaid principal balance	611,096	494,229	396,897
Impaired loans/leases, related allowance	267,430	265,795	396,897
Impaired loans/leases, recorded investment	1,337,146	1,165,548	1,230,235
Impaired loans/leases, unpaid principal balance	$ 1,337,146	$ 1,165,548	$ 1,230,235