XML 102 R89.htm IDEA: XBRL DOCUMENT v3.20.4

Loans and Allowance for Credit Losses on Loans - Schedule of loan deferrals by loan category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Loans, net	$ 2,574,861	$ 2,510,559
Initial deferment period	3 months
2nd deferment period	3 months
Collateral Pledged
Loans, net	$ 2,552
Real Estate
Loans, net	2,257
Business Assets
Loans, net	295
Initial Deferments | Collateral Pledged
Loans, net	1,573
Initial Deferments | Real Estate
Loans, net	1,573
2nd Deferments | Collateral Pledged
Loans, net	979
2nd Deferments | Real Estate
Loans, net	684
2nd Deferments | Business Assets
Loans, net	$ 295

X

- Definition

Represents the initial deferment period.

+ References

No definition available.

+ Details

Name:	htbk_LoansInitialDefermentPeriod
Namespace Prefix:	htbk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The second deferment period, which represents additional period from the initial deferment.

+ References

No definition available.

+ Details

Name:	htbk_LoansSecondDefermentPeriod
Namespace Prefix:	htbk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=htbk_BusinessAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=htbk_InitialDefermentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=htbk_SecondDefermentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: