XML 49 R39.htm IDEA: XBRL DOCUMENT
v3.21.1

STOCK-BASED COMPENSATION (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
STOCK-BASED COMPENSATION |
Activity Related to Stock Options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | ​ | ​ |  | Weighted- |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Remaining | ​ | Aggregate
​ | ​ | Number of | ​ | Average Exercise | ​ | Contractual | ​ | Intrinsic
​ |  | Options |  | Price |  | Years |  | Value
Options outstanding at January 1, 2021 | ​ | 28,842 | ​ | $ | 15.05 | ​ | ​ | ​ | ​ | ​
Options outstanding at January 1, 2021 as adjusted for conversion | ​ | 18,685 | ​ | ​ | 23.23 | ​ | ​ | ​ | ​ | ​
Options acquired (1) | ​ | 180,020 | ​ | ​ | 35.39 | ​ | ​ | ​ | ​ | ​
Options exercised |  | 15,928 | ​ |  | 23.37 |  |  | ​ |  |
Options outstanding at March 31, 2021 |  | 182,777 | ​ | $ | 35.19 |  | 8.0 | ​ | $ | —
Options vested and exercisable at March 31, 2021 |  | 182,777 | ​ | $ | 35.19 |  | 8.0 | ​ | $ | —
| (1) | Options acquired in the Merger expire one year from the date of the Effective Date of the Merger.
Information Related to Stock Option Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | March 31,
(In thousands) | ​ | 2021 |  | 2020
Cash received for option exercise cost | ​ | $ | 372 | ​ | $ | —
Income tax benefit recognized on stock option exercises | ​ |  | — | ​ |  | —
Intrinsic value of options exercised | ​ |  | 66 | ​ |  | —
Activity Related to Restricted Stock Awards | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | Weighted-
​ | ​ | ​ | ​ | Average
​ | ​ | Number of | ​ | Grant-Date
​ |  | Shares |  | Fair Value
Unvested allocated shares outstanding at January 1, 2021 | ​ | — | ​ | $ | —
Shares acquired | ​ | 89,043 | ​ | ​ | 31.00
Shares granted |  | 431,114 | ​ |  | 25.54
Shares vested |  | (89,043) | ​ |  | 31.00
Shares forfeited |  | (1,050) | ​ |  | 25.98
Unvested allocated shares at March 31, 2021 |  | 430,064 | ​ | $ | 25.54
Information Related to Restricted Stock Award Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended
​ | ​ | March 31,
(Dollars in thousands) | ​ | 2021 |  | 2020
Compensation expense recognized | ​ | $ | 836 | ​ | $ | 461
Income tax benefit recognized on vesting of RSA | ​ |  | — | ​ |  | 4
Weighted average remaining years for which compensation expense is to be recognized | ​ |  | 3.0 | ​ |  | 2.4

X
- Definition Tabular disclosure of employee restricted stock purchase plan activity. + References No definition available. + Details
Name: | dcom_ScheduleOfShareBasedCompensationRestrictedStockPurchasePlanActivityTableTextBlock
Namespace Prefix: | dcom_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of employee stock purchase plan activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationEmployeeStockPurchasePlanActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration