Note 8 - Loans & Allowance for Loan Losses (Details) - Allowance for Loan Losses (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Commercial:
Balance, beginning of period	$ 9,351,000	$ 9,456,000	$ 9,772,000	$ 9,241,000
Provision for (credit to) loan losses	100,000	0	100,000	300,000
Charge-offs	(92,000)	(149,000)	(543,000)	(243,000)
Recoveries	72,000	160,000	102,000	169,000
Balance, end of period	9,431,000	9,467,000	9,431,000	9,467,000
Commercial:Commercial and Industrial [Member]
Commercial:
Balance, beginning of period	2,314,000	3,317,000	2,505,000	2,959,000
Provision for (credit to) loan losses	(328,000)	164,000	(526,000)	520,000
Charge-offs	0	(74,000)	0	(74,000)
Recoveries	8,000	60,000	15,000	62,000
Balance, end of period	1,994,000	3,467,000	1,994,000	3,467,000
Commercial:Construction [Member]
Commercial:
Balance, beginning of period	230,000	333,000	209,000	556,000
Provision for (credit to) loan losses	12,000	20,000	33,000	(203,000)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	242,000	353,000	242,000	353,000
Commercial:Secured by Commercial Real Estate [Member]
Commercial:
Balance, beginning of period	3,873,000	3,126,000	3,795,000	3,124,000
Provision for (credit to) loan losses	42,000	2,000	120,000	4,000
Charge-offs	0	0	0	0
Recoveries	1,000	62,000	1,000	62,000
Balance, end of period	3,916,000	3,190,000	3,916,000	3,190,000
Commercial Secured By Residential Real Estate [Member]
Commercial:
Balance, beginning of period	1,146,000	773,000	1,230,000	746,000
Provision for (credit to) loan losses	246,000	88,000	498,000	151,000
Charge-offs	0	(50,000)	(336,000)	(86,000)
Recoveries	45,000	0	45,000	0
Balance, end of period	1,437,000	811,000	1,437,000	811,000
State And Political Subdivisions [Member]
Commercial:
Balance, beginning of period	257,000	301,000	260,000	195,000
Provision for (credit to) loan losses	20,000	(79,000)	17,000	27,000
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	277,000	222,000	277,000	222,000
Loans To Depository Institutions [Member]
Commercial:
Balance, beginning of period	10,000	20,000	15,000	20,000
Provision for (credit to) loan losses	0	0	(5,000)	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Balance, end of period	10,000	20,000	10,000	20,000
Indirect Lease Financing [Member]
Commercial:
Balance, beginning of period	179,000	238,000	168,000	312,000
Provision for (credit to) loan losses	(29,000)	21,000	(27,000)	(47,000)
Charge-offs	0	(13,000)	(1,000)	(23,000)
Recoveries	6,000	22,000	16,000	26,000
Balance, end of period	156,000	268,000	156,000	268,000
Retail:1-4 Family Residential Mortgages [Member]
Commercial:
Balance, beginning of period	300,000	303,000	324,000	249,000
Provision for (credit to) loan losses	(11,000)	(5,000)	(35,000)	70,000
Charge-offs	0	0	0	(21,000)
Recoveries	0	2,000	0	2,000
Balance, end of period	289,000	300,000	289,000	300,000
Retail Home Equity Loans And Lines [Member]
Commercial:
Balance, beginning of period	714,000	547,000	582,000	625,000
Provision for (credit to) loan losses	24,000	37,000	248,000	(23,000)
Charge-offs	(79,000)	(1,000)	(172,000)	(19,000)
Recoveries	5,000	12,000	6,000	12,000
Balance, end of period	664,000	595,000	664,000	595,000
Retail:Consumer [Member]
Commercial:
Balance, beginning of period	29,000	17,000	27,000	20,000
Provision for (credit to) loan losses	5,000	10,000	16,000	13,000
Charge-offs	(13,000)	(11,000)	(34,000)	(20,000)
Recoveries	7,000	2,000	19,000	5,000
Balance, end of period	28,000	18,000	28,000	18,000
Unallocated [Member]
Commercial:
Balance, beginning of period	299,000	481,000	657,000	435,000
Provision for (credit to) loan losses	119,000	(258,000)	(239,000)	(212,000)
Balance, end of period	$ 418,000	$ 223,000	$ 418,000	$ 223,000