Note 4 - Loans/Leases Receivable (Details) - Troubled Debt Restructurings (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, post-modification recorded investment	$ 1,387,147
Extension of Maturity [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1	3
Troubled debt restructurings, pre-modification recorded investment	58,987	809,494
Troubled debt restructurings, post-modification recorded investment	58,987	809,494
Troubled debt restructurings, specific allowance	58,987	182,498
Extension of Maturity [Member] | Finance Leases Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	2
Troubled debt restructurings, pre-modification recorded investment	303,701
Troubled debt restructurings, post-modification recorded investment	303,701
Troubled debt restructurings, specific allowance	12,644
Extension of Maturity [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	159,680
Troubled debt restructurings, post-modification recorded investment	159,680
Troubled debt restructurings, specific allowance	25,360
Extension of Maturity [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	113,653
Troubled debt restructurings, post-modification recorded investment	113,653
Troubled debt restructurings, specific allowance	113,653
Extension of Maturity [Member] | Owner-Occupied Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		1
Troubled debt restructurings, pre-modification recorded investment		61,517
Troubled debt restructurings, post-modification recorded investment		61,517
Troubled debt restructurings, specific allowance		10,260
Extension of Maturity [Member] | Non-Owner Occupied Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		8	[1]
Troubled debt restructurings, pre-modification recorded investment		6,637,835	[1]
Troubled debt restructurings, post-modification recorded investment		6,637,835	[1]
Troubled debt restructurings, specific allowance		1,535,154	[1]
Extension of Maturity [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	5	12
Troubled debt restructurings, pre-modification recorded investment	636,021	7,508,846
Troubled debt restructurings, post-modification recorded investment	636,021	7,508,846
Troubled debt restructurings, specific allowance	210,644	1,727,912
Significant Payment Delay [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	3
Troubled debt restructurings, pre-modification recorded investment	889,154
Troubled debt restructurings, post-modification recorded investment	889,154
Troubled debt restructurings, specific allowance	217,524
Significant Payment Delay [Member] | Finance Leases Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		1
Troubled debt restructurings, pre-modification recorded investment		370,000
Troubled debt restructurings, post-modification recorded investment		370,000
Troubled debt restructurings, specific allowance		300
Significant Payment Delay [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		1
Troubled debt restructurings, pre-modification recorded investment		91,581
Troubled debt restructurings, post-modification recorded investment		91,581
Significant Payment Delay [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	3	2
Troubled debt restructurings, pre-modification recorded investment	889,154	461,581
Troubled debt restructurings, post-modification recorded investment	889,154	461,581
Troubled debt restructurings, specific allowance	217,524	300
Foregiveness of Principal [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	96,439
Troubled debt restructurings, post-modification recorded investment	71,760
Troubled debt restructurings, specific allowance	6,948
Foregiveness of Principal [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	96,439
Troubled debt restructurings, post-modification recorded investment	71,760
Troubled debt restructurings, specific allowance	6,948
All Other [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	427,849
Troubled debt restructurings, post-modification recorded investment	427,849
Troubled debt restructurings, specific allowance	60,429
All Other [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	1
Troubled debt restructurings, pre-modification recorded investment	427,849
Troubled debt restructurings, post-modification recorded investment	427,849
Troubled debt restructurings, specific allowance	60,429
Troubled Debt Restructurings [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases	10	19
Troubled debt restructurings, pre-modification recorded investment	2,049,463	8,702,765
Troubled debt restructurings, post-modification recorded investment	2,024,784	8,702,765
Troubled debt restructurings, specific allowance	495,545	1,841,170
Interest Rate Adjusted Below Market [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		3
Troubled debt restructurings, pre-modification recorded investment		394,838
Troubled debt restructurings, post-modification recorded investment		394,838
Troubled debt restructurings, specific allowance		108,121
Interest Rate Adjusted Below Market [Member] | Non-Owner Occupied Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		1	[2]
Troubled debt restructurings, specific allowance		4,837	[2]
Interest Rate Adjusted Below Market [Member] | Commercial Construction, Land Development, and Other Land [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		1
Troubled debt restructurings, pre-modification recorded investment		337,500
Troubled debt restructurings, post-modification recorded investment		337,500
Interest Rate Adjusted Below Market [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructurings, number of loans/leases		5
Troubled debt restructurings, pre-modification recorded investment		732,338
Troubled debt restructurings, post-modification recorded investment		732,338
Troubled debt restructurings, specific allowance		$ 112,958

[1] Includes one troubled debt restructuring that is a $136,000 line of credit that had nothing outstanding at the time of modification. The total amount outstanding as of December 31, 2013 was $135,477 with specific allowance of $67,745.

[2] Includes one troubled debt restructuring that is a $25,000 line of credit that had nothing outstanding at the time of modification. The total amount outstanding as of December 31, 2013 was $4,837 with specific allowance of $4,837.