NOTE 10 - SUBORDINATED DEBENTURES (Detail) - (Table 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
North Valley Capital Trust's	3.56%
North Valley Capital Trust's	$ 21,651	$ 31,961
Debentures A[Member]
North Valley Capital Trust's	7/16/01
North Valley Capital Trust's	Dec. 31, 2008
North Valley Capital Trust's	Fixed
North Valley Capital Trust's	10.25%
North Valley Capital Trust's	N/A
North Valley Capital Trust's	7/25/11
North Valley Capital Trust's		10,310
Debentures B[Member]
North Valley Capital Trust's	4/10/03
North Valley Capital Trust's	Dec. 31, 2008
North Valley Capital Trust's	Variable
North Valley Capital Trust's	3.56%
North Valley Capital Trust's	LIBOR + 3.25%
North Valley Capital Trust's	4/24/08
North Valley Capital Trust's	6,186	6,186
DebenturesC[Member]
North Valley Capital Trust's	5/5/04
North Valley Capital Trust's	Dec. 31, 2008
North Valley Capital Trust's	Variable
North Valley Capital Trust's	3.12%
North Valley Capital Trust's	LIBOR + 2.80%
North Valley Capital Trust's	7/23/09
North Valley Capital Trust's	5,155	5,155
DebenturesD[Member]
North Valley Capital Trust's	12/29/05
North Valley Capital Trust's	Dec. 31, 2008
North Valley Capital Trust's	Variable
North Valley Capital Trust's	1.64%
North Valley Capital Trust's	LIBOR + 1.33%
North Valley Capital Trust's	3/15/11
North Valley Capital Trust's	$ 10,310	$ 10,310