8. ALLOWANCE FOR LOAN AND LEASE LOSSES (Detail) - (Table 4) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Commercial:
Nonaccrual loans and leases that are past due	$ 3,041	$ 3,960
Loans and Lease Portfolio Current	1,770	1,514
Commercial Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	7	804
Loans and Lease Portfolio Past Due Greater Than 90 Days	1,771	1,497
Nonaccrual loans and leases that are past due	1,778	2,301
Loans and Lease Portfolio Current	25,549	28,510
Loans and Lease Portfolio Total Loans	27,327	30,811
Nonaccrual	1,822	2,352
Commercial Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	2,115
Loans and Lease Portfolio 60-89 Days Past Due		703
Loans and Lease Portfolio Past Due Greater Than 90 Days	633	700
Nonaccrual loans and leases that are past due	2,748	1,403
Loans and Lease Portfolio Current	174,174	178,723
Loans and Lease Portfolio Total Loans	176,922	180,126
Nonaccrual	2,600	2,687
Multi-Family Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Current	10,311	9,155
Loans and Lease Portfolio Total Loans	10,311	9,155
Construction Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Current	5,932	6,918
Loans and Lease Portfolio Total Loans	5,932	6,918
Residential Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	571
Loans and Lease Portfolio Past Due Greater Than 90 Days	172	210
Nonaccrual loans and leases that are past due	743	210
Loans and Lease Portfolio Current	18,145	17,491
Loans and Lease Portfolio Total Loans	18,888	17,701
Nonaccrual	172	210
Finance Leases Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Past Due Greater Than 90 Days	1	3
Nonaccrual loans and leases that are past due	1	3
Loans and Lease Portfolio Current	1,332	1,506
Loans and Lease Portfolio Total Loans	1,333	1,509
Nonaccrual	1	3
Agriculture Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Current	3,327	3,340
Loans and Lease Portfolio Total Loans	3,327	3,340
Consumer Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	225
Loans and Lease Portfolio 60-89 Days Past Due	45	60
Loans and Lease Portfolio Past Due Greater Than 90 Days	67	114
Nonaccrual loans and leases that are past due	337	174
Loans and Lease Portfolio Current	7,251	8,395
Loans and Lease Portfolio Total Loans	7,588	8,569
Nonaccrual	216	222
Total [ Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	2,918	804
Loans and Lease Portfolio 60-89 Days Past Due	45	763
Loans and Lease Portfolio Past Due Greater Than 90 Days	2,644	2,524
Nonaccrual loans and leases that are past due	5,607	4,091
Loans and Lease Portfolio Current	246,021	254,038
Loans and Lease Portfolio Total Loans	251,628	258,129
Nonaccrual	$ 4,811	$ 5,474