Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2017

Banking And Thrift [Abstract]

Risk-Based Capital Ratios

The following table provides both the Company’s and the Bank’s risk-based capital ratios as of March 31, 2017 and December 31, 2016.

Regulatory Capital Levels

	Actual					For Capital Adequacy Purposes					Minimum Capital Requirement with Conservation Buffer(1)					To Be Well Capitalized Under Prompt Corrective Action Provision(2)
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
March 31, 2017:
Total risk-based capital (to risk-weighted assets):
Sun Bancorp, Inc.	$	357,177		21.88	%	$	130,618		8.00	%	$	151,027		9.25	%	N/A
Sun National Bank		307,118		18.82			130,548		8.00			150,946		9.25		$	163,186		10.00	%
Tier 1 common equity capital  (to risk-    weighted assets):
Sun Bancorp, Inc.		257,846		15.79			73,473		4.50			93,882		5.75		N/A
Sun National Bank		290,555		17.81			73,434		4.50			93,832		5.75			106,071		6.50
Tier 1 capital (to risk-weighted assets):
Sun Bancorp, Inc.		313,271		19.19			97,964		6.00			118,373		7.25		N/A
Sun National Bank		290,555		17.81			97,911		6.00			118,309		7.25			130,548		8.00
Leverage capital:
Sun Bancorp, Inc.		313,271		14.46			86,657		4.00		N/A					N/A
Sun National Bank		290,555		13.43			86,518		4.00		N/A						108,147		5.00
December 31, 2016:
Total risk-based capital (to risk-weighted assets):
Sun Bancorp, Inc.	$	354,078		21.63	%	$	130,929		8.00	%	$	141,157		8.625	%	N/A
Sun National Bank		324,196		19.85			130,664		8.00			140,872		8.625		$	163,330		10.00	%
Tier 1 common equity capital (to risk-    weighted assets):
Sun Bancorp, Inc.		262,386		16.03			73,647		4.50			83,876		5.125		N/A
Sun National Bank		308,043		18.86			73,498		4.50			83,707		5.125			106,164		6.50
Tier 1 capital (to risk-weighted assets):
Sun Bancorp, Inc.		309,910		18.94			98,196		6.00			108,425		6.625		N/A
Sun National Bank		308,043		18.86			97,998		6.00			108,206		6.625			130,664		8.00
Leverage capital:
Sun Bancorp, Inc.		309,910		14.57			85,092		4.00		N/A					N/A
Sun National Bank		308,043		14.50			84,959		4.00		N/A						106,199		5.00

(1) Conservation Buffer of 1.25% became effective as of January 1, 2017.

(2) Not applicable for bank holding companies.