11. FAIR VALUE MEASUREMENTS (Detail) - (Table 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Commercial Loan [Member] | Estimate Of Fair Value, Fair Value Disclosure [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		$ 776
Commercial Loan [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		776
Commercial Loan [Member] | Total Gains(Losses) [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	3	(106)
Commercial Real Estate [Member] | Estimate Of Fair Value, Fair Value Disclosure [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	705	432
Commercial Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	705	432
Commercial Real Estate [Member] | Total Gains(Losses) [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		(68)
Construction Loans [Member] | Estimate Of Fair Value, Fair Value Disclosure [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		210
Construction Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		210
Construction Loans [Member] | Total Gains(Losses) [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring		(72)
Residential Mortgage [Member] | Estimate Of Fair Value, Fair Value Disclosure [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	173
Residential Mortgage [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	173
Residential Mortgage [Member] | Total Gains(Losses) [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	(21)
Other Real Estate Owned [Member] | Estimate Of Fair Value, Fair Value Disclosure [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	8,946	12,237
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	8,946	12,237
Other Real Estate Owned [Member] | Total Gains(Losses) [Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	(40)	(1,002)
Estimate Of Fair Value, Fair Value Disclosure [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	210,807	200,515
Estimate Of Fair Value, Fair Value Disclosure [Member] | US Government Corporations and Agencies Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	29,381	29,656
Estimate Of Fair Value, Fair Value Disclosure [Member] | Corporate Bond Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	1,606	1,594
Estimate Of Fair Value, Fair Value Disclosure [Member] | Equity Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	87	74
Estimate Of Fair Value, Fair Value Disclosure [Member] | Total [ Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	9,824	13,655
Estimate Of Fair Value, Fair Value Disclosure [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	241,881	231,839
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	28	15
Fair Value, Inputs, Level 1 [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	28	15
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	210,807	200,515
Fair Value, Inputs, Level 2 [Member] | US Government Corporations and Agencies Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	29,381	29,656
Fair Value, Inputs, Level 2 [Member] | Corporate Bond Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	1,606	1,594
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	59	59
Fair Value, Inputs, Level 2 [Member]
Available-for-sale securities:
Asset Fair Value Disclosure Recurring	241,853	231,824
Fair Value, Inputs, Level 3 [Member] | Total [ Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	9,824	13,655
Total Gains(Losses) [Member] | Total [ Member]
Impaired loans:
Asset Fair Value Disclosure Nonrecurring	$ (58)	$ (1,248)