REGULATORY CAPITAL (Tables)

6 Months Ended

Jun. 30, 2012

Banking and Thrift [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

At June 30, 2012 and December 31, 2011, the Company and First Bank’s required and actual capital ratios were as follows:

											To be Well
											Capitalized
											Under
											Prompt
	Actual								For Capital		Corrective
	June 30, 2012				December 31, 2011				Adequacy		Action
	Amount		Ratio		Amount		Ratio		Purposes		Provisions
	(dollars expressed in thousands)
Total capital (to risk-weighted assets):
First Banks, Inc.	$	87,400	2.33	%	$	73,830	1.88	%	8.0	%	N/A
First Bank		608,776	16.20			588,860	14.98		8.0		10.0	%
Tier 1 capital (to risk-weighted assets):
First Banks, Inc.		43,700	1.16			36,915	0.94		4.0		N/A
First Bank		560,859	14.92			538,592	13.70		4.0		6.0
Tier 1 capital (to average assets):
First Banks, Inc.		43,700	0.68			36,915	0.56		4.0		N/A
First Bank		560,859	8.71			538,592	8.19		4.0		5.0