8. ALLOWANCE FOR LOAN AND LEASE LOSSES (Detail) - (Table 4) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Commercial:
Loans and Lease Portfolio Total Past Due	$ 4,868	$ 13,027
Loans and Lease Portfolio Current	1,909	396
Commercial Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due		60
Loans and Lease Portfolio 60-89 Days Past Due		277
Loans and Lease Portfolio Past Due Greater Than 90 Days	2,285	2,472
Loans and Lease Portfolio Total Past Due	2,285	2,809
Loans and Lease Portfolio Current	30,100	39,299
Loans and Lease Portfolio Total Loans	32,385	42,108
Nonaccrual	3,363	2,775
Commercial Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	555	2,318
Loans and Lease Portfolio 60-89 Days Past Due	767	1,527
Loans and Lease Portfolio Past Due Greater Than 90 Days	1,948	5,271
Loans and Lease Portfolio Total Past Due	3,270	9,116
Loans and Lease Portfolio Current	189,547	194,927
Loans and Lease Portfolio Total Loans	192,817	204,043
Nonaccrual	2,579	7,469
Multi-Family Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Past Due Greater Than 90 Days		257
Loans and Lease Portfolio Total Past Due		257
Loans and Lease Portfolio Current	9,237	7,323
Loans and Lease Portfolio Total Loans	9,237	7,580
Nonaccrual		257
Construction Real Estate Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	299
Loans and Lease Portfolio 60-89 Days Past Due		244
Loans and Lease Portfolio Past Due Greater Than 90 Days		1,967
Loans and Lease Portfolio Total Past Due	299	2,211
Loans and Lease Portfolio Current	8,423	8,145
Loans and Lease Portfolio Total Loans	8,722	10,356
Nonaccrual	74	2,083
Residential Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 60-89 Days Past Due	233
Loans and Lease Portfolio Total Past Due	233
Loans and Lease Portfolio Current	18,432	19,695
Loans and Lease Portfolio Total Loans	18,665	19,695
Nonaccrual	210
Finance Leases Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Past Due Greater Than 90 Days	4	17
Loans and Lease Portfolio Total Past Due	4	17
Loans and Lease Portfolio Current	1,882	1,708
Loans and Lease Portfolio Total Loans	1,886	1,725
Nonaccrual	4	17
Agriculture Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio Past Due Greater Than 90 Days		597
Loans and Lease Portfolio Total Past Due		597
Loans and Lease Portfolio Current	3,675	3,986
Loans and Lease Portfolio Total Loans	3,675	4,583
Nonaccrual	389	597
Consumer Portfolio Segment [Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	56	188
Loans and Lease Portfolio 60-89 Days Past Due	69	411
Loans and Lease Portfolio Past Due Greater Than 90 Days	111	139
Loans and Lease Portfolio Total Past Due	236	738
Loans and Lease Portfolio Current	8,720	10,246
Loans and Lease Portfolio Total Loans	8,956	10,984
Nonaccrual	158	225
Total [ Member]
Commercial:
Loans and Lease Portfolio 30-59 Days Past Due	910	2,566
Loans and Lease Portfolio 60-89 Days Past Due	1,069	2,459
Loans and Lease Portfolio Past Due Greater Than 90 Days	4,348	10,720
Loans and Lease Portfolio Total Past Due	6,327	15,745
Loans and Lease Portfolio Current	270,016	285,329
Loans and Lease Portfolio Total Loans	276,343	301,074
Nonaccrual	$ 6,777	$ 13,423