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Earnings per Share (Details Narrative) - $ / shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings per share:
Earnings per share		178,812
Cash dividend declared	$ 0.21
Dividends payable, date to be paid	Jun. 04, 2025

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- Definition

Dividend payable date to be paid for day month and year.

+ References

No definition available.

+ Details

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Namespace Prefix:	LARK_
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Balance Type:	na
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X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

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- References

No definition available.

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