Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2017
Consolidated Statements of Comprehensive Income
Related income tax expense for gain on sale and call of securities, net	$ 376,000
Related income tax (benefit) on amortization of prior service cost and actuarial losses		$ (391,000)

Amount of current income tax expense (benefit) on the amortization of prior service costs and actuarial losses during the period.

No definition available.

Name:	hone_Incometaxexpensebenefitamortizationpriorservicecostoractuariallosses
Namespace Prefix:	hone_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration