Note 5 - Loans Receivable and the Allowance for Loan Losses (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						$ 9,241	$ 9,772	$ 9,241
Provision for (credit to) loan losses	150	150	100	300	300	300	400	900
Charge-offs							(1,421)	(581)
Recoveries							174	212
Balance, end of year	8,925			9,772			8,925	9,772
Commercial:Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						2,959	2,505	2,959
Provision for (credit to) loan losses							(421)	(429)
Charge-offs							(68)	(101)
Recoveries							28	76
Balance, end of year	2,044			2,505			2,044	2,505
Commercial:Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						556	209	556
Provision for (credit to) loan losses							230	(347)
Balance, end of year	439			209			439	209
Commercial:Secured by Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						3,124	3,795	3,124
Provision for (credit to) loan losses							(259)	680
Charge-offs							(639)	(85)
Recoveries							1	76
Balance, end of year	2,898			3,795			2,898	3,795
Commercial Secured By Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						746	1,230	746
Provision for (credit to) loan losses							743	595
Charge-offs							(401)	(111)
Recoveries							60
Balance, end of year	1,632			1,230			1,632	1,230
State And Political Subdivisions [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						195	260	195
Provision for (credit to) loan losses							(75)	65
Recoveries							1
Balance, end of year	186			260			186	260
Loans To Depository Institutions [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						20	15	20
Provision for (credit to) loan losses							(11)	(5)
Balance, end of year	4			15			4	15
Indirect Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						312	168	312
Provision for (credit to) loan losses							(93)	(95)
Charge-offs							(2)	(85)
Recoveries							30	36
Balance, end of year	103			168			103	168
Retail:1-4 Family Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						249	324	249
Provision for (credit to) loan losses							(21)	94
Charge-offs								(21)
Recoveries								2
Balance, end of year	303			324			303	324
Retail Home Equity Loans And Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						625	582	625
Provision for (credit to) loan losses							207	59
Charge-offs							(234)	(114)
Recoveries							28	12
Balance, end of year	583			582			583	582
Retail:Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						20	27	20
Provision for (credit to) loan losses							88	61
Charge-offs							(77)	(64)
Recoveries							26	10
Balance, end of year	64			27			64	27
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of year						435	657	435
Provision for (credit to) loan losses							12	222
Charge-offs
Recoveries
Balance, end of year	$ 669			$ 657			$ 669	$ 657