XML 44 R22.htm IDEA: XBRL DOCUMENT v3.25.0.1

Note 1 - Business and Basis of Presentation (Details Textual)	Dec. 31, 2024
Number Of Counties In Which Entity Operates	594
Number of States in which Entity Operates	28

X

- Definition

The number of counties the entity operates in.

+ References

No definition available.

+ Details

Name:	dmlp_NumberOfCountiesInWhichEntityOperates
Namespace Prefix:	dmlp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant