Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Re-measurement of our net deferred tax asset	$ 10,500
State tax, net of federal income tax	3,056	$ 1,448	$ 1,674
Current state and local tax expense (benefit)	4,067	1,985	$ 1,672
Deferred tax assets, gross	24,027	27,655
Net deferred tax asset	19,748	25,325
Bad debt base-year reserve	5,900	5,900
Federal tax bad debt deferred tax liability	2,800	$ 2,800
Hopewell Valley Community Bank
Operating Loss Carryforwards [Line Items]
Net deferred tax asset				$ 3,900
New Jersey Division of Taxation
Operating Loss Carryforwards [Line Items]
State tax, net of federal income tax	889
Current state and local tax expense (benefit)	1,100
Deferred tax assets, gross	$ 239