Note 4 - Loans/Leases Receivable (Details) - Impaired Loans/Leases (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Dec. 31, 2012
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	$ 7,592,244		$ 7,592,244	$ 4,372,125
Unpaid Principal Balance	9,722,723		9,722,723	5,320,511
Average Recorded Investment	7,195,437	15,604,148	6,694,715
Interest Income Recognized	5,280	3,457	49,746
Interest Income Recognized for Cash Payments Received	5,280	3,457	49,746
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	17,902,183		17,902,183	19,922,086
Unpaid Principal Balance	18,164,961		18,164,961	20,197,297
Related Allowance	5,585,124		5,585,124	4,587,769
Average Recorded Investment	16,549,285	11,667,009	15,484,781
Interest Income Recognized	18,023	85,084	25,199
Interest Income Recognized for Cash Payments Received	18,023	85,084	25,199
Total Impaired Loans/Leases:
Recorded Investment	25,494,427		25,494,427	24,294,211
Unpaid Principal Balance	27,887,684		27,887,684	25,517,808
Related Allowance	5,585,124		5,585,124	4,587,769
Average Recorded Investment	23,744,722	27,271,157	22,179,496
Interest Income Recognized	23,303	88,541	74,973
Interest Income Recognized for Cash Payments Received	23,303	88,541	74,973
Commercial and Industrial [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	678,239		678,239	438,355
Unpaid Principal Balance	1,149,252		1,149,252	1,203,710
Average Recorded Investment	613,506	870,085	690,717
Interest Income Recognized	1,937		3,861
Interest Income Recognized for Cash Payments Received	1,937		3,861
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	2,229,181		2,229,181	568,597
Unpaid Principal Balance	2,238,999		2,238,999	590,849
Related Allowance	1,039,328		1,039,328	280,170
Average Recorded Investment	1,229,737	314,872	722,935
Interest Income Recognized	15,307	1,971	15,307
Interest Income Recognized for Cash Payments Received	15,307	1,971	15,307
Total Impaired Loans/Leases:
Recorded Investment	2,907,420		2,907,420	1,006,952
Unpaid Principal Balance	3,388,251		3,388,251	1,794,559
Related Allowance	1,039,328		1,039,328	280,170
Average Recorded Investment	1,843,243	1,184,957	1,413,652
Interest Income Recognized	17,244	1,971	19,168
Interest Income Recognized for Cash Payments Received	17,244	1,971	19,168
Owner-occupied commercial real estate [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	3,554,904		3,554,904	503,321
Unpaid Principal Balance	4,934,815		4,934,815	503,321
Average Recorded Investment	3,107,106	668,313	1,318,703
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	980,236		980,236
Unpaid Principal Balance	980,236		980,236
Related Allowance	400,000		400,000
Average Recorded Investment	653,815	66,660	326,908
Total Impaired Loans/Leases:
Recorded Investment	4,535,140		4,535,140	503,321
Unpaid Principal Balance	5,915,051		5,915,051	503,321
Related Allowance	400,000		400,000
Average Recorded Investment	3,760,921	734,973	1,645,611
Commercial construction, land development, and other land [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	300,000		300,000	678,523
Unpaid Principal Balance	300,000		300,000	678,523
Average Recorded Investment	325,000	4,773,032	331,250
Interest Income Recognized		1,683
Interest Income Recognized for Cash Payments Received		1,683
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	3,652,434		3,652,434	3,967,583
Unpaid Principal Balance	3,652,434		3,652,434	3,967,583
Related Allowance	1,428,466		1,428,466	1,105,795
Average Recorded Investment	3,656,226	2,348,194	3,626,128
Interest Income Recognized	2,716		5,419
Interest Income Recognized for Cash Payments Received	2,716		5,419
Total Impaired Loans/Leases:
Recorded Investment	3,952,434		3,952,434	4,646,106
Unpaid Principal Balance	3,952,434		3,952,434	4,646,106
Related Allowance	1,428,466		1,428,466	1,105,795
Average Recorded Investment	3,981,226	7,121,226	3,957,378
Interest Income Recognized	2,716	1,683	5,419
Interest Income Recognized for Cash Payments Received	2,716	1,683	5,419
Other commercial real estate [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	224,719		224,719	495,702
Unpaid Principal Balance	224,719		224,719	495,702
Average Recorded Investment	353,972	6,997,797	1,782,488
Interest Income Recognized	657		40,773
Interest Income Recognized for Cash Payments Received	657		40,773
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	10,160,743		10,160,743	14,738,717
Unpaid Principal Balance	10,413,703		10,413,703	14,991,676
Related Allowance	2,475,091		2,475,091	2,899,247
Average Recorded Investment	10,143,708	8,354,604	10,088,904
Interest Income Recognized		83,113	4,501
Interest Income Recognized for Cash Payments Received		83,113	4,501
Total Impaired Loans/Leases:
Recorded Investment	10,385,462		10,385,462	15,234,419
Unpaid Principal Balance	10,638,422		10,638,422	15,487,378
Related Allowance	2,475,091		2,475,091	2,899,247
Average Recorded Investment	10,497,680	15,352,401	11,871,392
Interest Income Recognized	657	83,113	45,274
Interest Income Recognized for Cash Payments Received	657	83,113	45,274
Leases receivable [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	542,497		542,497	777,645
Unpaid Principal Balance	542,497		542,497	777,645
Average Recorded Investment	822,718	585,845	845,413
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	158,077		158,077	221,157
Unpaid Principal Balance	158,077		158,077	221,157
Related Allowance	116,077		116,077	125,000
Average Recorded Investment	133,038	118,275	124,691
Total Impaired Loans/Leases:
Recorded Investment	700,574		700,574	998,802
Unpaid Principal Balance	700,574		700,574	998,802
Related Allowance	116,077		116,077	125,000
Average Recorded Investment	955,756	704,120	970,104
Residential Real Estate [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	1,271,905		1,271,905	944,211
Unpaid Principal Balance	1,538,919		1,538,919	1,127,242
Average Recorded Investment	1,057,657	734,485	934,120
Interest Income Recognized		1,673
Interest Income Recognized for Cash Payments Received		1,673
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	300,615		300,615	273,045
Unpaid Principal Balance	300,615		300,615	273,045
Related Allowance	90,235		90,235	105,565
Average Recorded Investment	302,334	462,406	305,587
Total Impaired Loans/Leases:
Recorded Investment	1,572,520		1,572,520	1,217,256
Unpaid Principal Balance	1,839,534		1,839,534	1,400,287
Related Allowance	90,235		90,235	105,565
Average Recorded Investment	1,359,991	1,196,891	1,239,707
Interest Income Recognized		1,673
Interest Income Recognized for Cash Payments Received		1,673
Installment and Other Consumer [Member]
Impaired Loans/Leases with No Specific Allowance Recorded:
Recorded Investment	1,019,980		1,019,980	534,368
Unpaid Principal Balance	1,032,521		1,032,521	534,368
Average Recorded Investment	915,478	974,591	792,024
Interest Income Recognized	2,686	101	5,112
Interest Income Recognized for Cash Payments Received	2,686	101	5,112
Impaired Loans/Leases with Specific Allowance Recorded:
Recorded Investment	420,897		420,897	152,987
Unpaid Principal Balance	420,897		420,897	152,987
Related Allowance	35,927		35,927	71,992
Average Recorded Investment	430,427	1,998	289,628
Total Impaired Loans/Leases:
Recorded Investment	1,440,877		1,440,877	687,355
Unpaid Principal Balance	1,453,418		1,453,418	687,355
Related Allowance	35,927		35,927	71,992
Average Recorded Investment	1,345,905	976,589	1,081,652
Interest Income Recognized	2,686	101	5,112
Interest Income Recognized for Cash Payments Received	$ 2,686	$ 101	$ 5,112