Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2018

Regulatory Matters [Abstract]

Schedule of Actual Capital Amounts and Ratios

										To Be Well
						For Capital				Capitalized Under
						Adequacy				Prompt Corrective
		Actual				Purposes*				Action Provisions*
(Dollars in thousands)		Amount	Ratio			Amount	Ratio			Amount	Ratio
DNB Financial Corporation
December 31, 2018:
Total risk-based capital	$	124,769	13.61	%	$	73,538	8.00	%		N/A	N/A
Common equity tier 1 capital		98,949	10.79			41,365	4.50			N/A	N/A
Tier 1 risk-based capital		107,949	11.77			55,153	6.00			N/A	N/A
Tier 1 (leverage) capital		107,949	9.48			45,557	4.00			N/A	N/A
December 31, 2017:
Total risk-based capital	$	113,400	13.73	%	$	66,083	8.00	%		N/A	N/A
Common equity tier 1 capital		88,459	10.71			37,172	4.50			N/A	N/A
Tier 1 risk-based capital		97,459	11.80			49,562	6.00			N/A	N/A
Tier 1 (leverage) capital		97,459	9.19			42,426	4.00			N/A	N/A
DNB First, N.A.
December 31, 2018:
Total risk-based capital	$	123,239	13.46	%	$	73,399	8.00	%	$	91,748	10.00	%
Common equity tier 1 capital		116,169	12.69			41,287	4.50			59,636	6.50
Tier 1 risk-based capital		116,169	12.69			55,049	6.00			73,399	8.00
Tier 1 (leverage) capital		116,169	10.21			45,503	4.00			56,879	5.00
December 31, 2017:
Total risk-based capital	$	112,050	13.59	%	$	65,953	8.00	%	$	82,441	10.00	%
Common equity tier 1 capital		105,859	12.84			37,098	4.50			53,587	6.50
Tier 1 risk-based capital		105,859	12.84			49,465	6.00			65,953	8.00
Tier 1 (leverage) capital		105,859	9.99			42,378	4.00			52,972	5.00

*Does not include capital conservation buffer of 1.250% for 2017 and 1.875% for 2018.