XML 41 R28.htm IDEA: XBRL DOCUMENT v3.24.3

SHAREHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 30, 2024

SHAREHOLDERS' EQUITY

Schedule of transactions related to restricted stock units under 2016 plan

The following table summarizes all transactions related to restricted stock units granted under the 2016 Plan for the nine months ended September 30, 2024:

​	​	​	​	​	​	​
​	​	​	Number of Shares of Common Stock/Restricted Stock Units	​	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2023	​	​	146,832	​	$	33.98
Granted	​	​	118,493	​	​	45.99
Vested (1)	​	​	(50,832)	​	​	31.44
Forfeited	​	​	—	​	​	—
Non-vested as of September 30, 2024	​	​	214,493	​	$	37.14

(1) Vested shares include 7,680 shares of common stock that vested and were withheld for employee taxes.

Schedule of additional data related to restricted share unit activity

The following table provides additional data related to restricted stock unit grants under the 2016 plan:

​	​	​	​
(in thousands, except weighted average period in years)	​	2024
Total compensation cost, net of estimated forfeitures, related to non-vested restricted stock unit awards not yet recognized, pre-tax	​	$	4,776
Weighted average period in years over which restricted stock unit cost is expected to be recognized (in years)	​	​	1.9
Total fair value of shares of common stock vested during the year	​	$	1,598

X

- Definition

Tabular disclosure of information pertaining to restricted stock units activity.

+ References

No definition available.

+ Details

Name:	mlr_ScheduleOfAdditionalInformationRelatedToRestrictedShareUnitActivityTableTextBlock
Namespace Prefix:	mlr_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration