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Note 7 - Loans and Related Allowance for Loan and Lease Losses (Details) - Allowance for Loan Losses - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 843		$ 843		$ 1,596
Collectively evaluated for impairment	5,503		5,503		5,250
Total ending allowance balance	6,346	$ 7,129	6,346	$ 7,046	6,846
Ending allowance balance attributable to loans:
Beginning balance	6,447	7,015	6,846	7,046
ALLL balance, period end	6,346	7,129	6,346	7,129
Charge-offs	(199)	(233)	(879)	(584)
Recoveries	98	227	274	367
Provision	0	120	105	300
Commercial and Industrial [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	137		137		83
Collectively evaluated for impairment	473		473		559
Total ending allowance balance	610	596	610	614	642
Ending allowance balance attributable to loans:
Beginning balance	493	867	642	614
ALLL balance, period end	610	596	610	596
Charge-offs	0	(80)	(96)	(92)
Recoveries	21	64	181	65
Provision	96	(255)	(117)	9
Real Estate Construction Porfolio Segment [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	211		211		589
Collectively evaluated for impairment	152		152		279
Total ending allowance balance	363	423	363	576	868
Ending allowance balance attributable to loans:
Beginning balance	494	488	868	576
ALLL balance, period end	363	423	363	423
Charge-offs	0	0	(385)	0
Recoveries	0	60	0	60
Provision	(131)	(125)	(120)	(213)
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	346		346		892
Collectively evaluated for impairment	3,001		3,001		2,811
Total ending allowance balance	3,347	4,130	3,347	3,664	3,703
Ending allowance balance attributable to loans:
Beginning balance	3,459	3,726	3,703	3,664
ALLL balance, period end	3,347	4,130	3,347	4,130
Charge-offs	(109)	(141)	(300)	(457)
Recoveries	65	58	77	195
Provision	(68)	487	(133)	728
Commercial Portfolio Segment [Member] | Commercial Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	149		149		30
Collectively evaluated for impairment	1,829		1,829		1,546
Total ending allowance balance	1,978	1,925	1,978	2,170	1,576
Ending allowance balance attributable to loans:
Beginning balance	1,958	1,862	1,576	2,170
ALLL balance, period end	1,978	1,925	1,978	1,925
Charge-offs	(87)	0	(87)	0
Recoveries	0	40	0	40
Provision	107	23	489	(285)
Consumer Portfolio Segment [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0		0		2
Collectively evaluated for impairment	48		48		55
Total ending allowance balance	48	55	48	22	$ 57
Ending allowance balance attributable to loans:
Beginning balance	43	72	57	22
ALLL balance, period end	48	55	48	55
Charge-offs	(3)	(12)	(11)	(35)
Recoveries	12	5	16	7
Provision	$ (4)	$ (10)	$ (14)	$ 61

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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