Regulatory Matters (Tables)

6 Months Ended

Jun. 30, 2012

Regulatory Matters [Abstract]

Summary of capital amounts and ratios

	Actual						For Capital Adequacy Purposes							To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio				Amount			Ratio				Amount			Ratio
As of June 30, 2012:
Total capital (to risk weighted assets)
Customers Bancorp, Inc.	$	171,153		10.17	%	³	$	134,597	³		8.0	%	³		N/A			N/A
Customers Bank	$	170,807		10.16	%	³	$	134,524	³		8.0	%	³	$	168,155	³		10.0	%
Tier 1 capital (to risk weighted assets)
Customers Bancorp, Inc.	$	154,182		9.16	%	³	$	67,299	³		4.0	%	³		N/A			N/A
Customers Bank	$	153,836		9.15	%	³	$	67,262	³		4.0	%	³	$	100,893	³		6.0	%
Tier 1 capital (to average assets)
Customers Bancorp, Inc.	$	154,182		7.45	%	³	$	82,733	³		4.0	%	³		N/A			N/A
Customers Bank	$	153,836		7.43	%	³	$	82,788	³		4.0	%	³	$	103,485	³		5.0	%
As of December 31, 2011:
Total capital (to risk weighted assets)
Customers Bancorp, Inc.	$	162,228		11.43	%	³	$	113,504	³		8.0	%	³		N/A			N/A
Customers Bank	$	157,228		11.08	%	³	$	113,504	³		8.0	%	³	$	141,880	³		10.0	%
Tier 1 capital (to risk weighted assets)
Customers Bancorp, Inc.	$	146,395		10.32	%	³	$	56,752	³		4.0	%	³		N/A			N/A
Customers Bank	$	141,395		9.97	%	³	$	56,752	³		4.0	%	³	$	85,128	³		6.0	%
Tier 1 capital (to average assets)
Customers Bancorp, Inc.	$	146,395		7.59	%	³	$	77,166	³		4.0	%	³		N/A			N/A
Customers Bank	$	141,395		7.33	%	³	$	77,166	³		4.0	%	³	$	96,457	³		5.0	%