XML 27 R13.htm IDEA: XBRL DOCUMENT
v3.21.1

Bank Stocks | 12 Months Ended
--- | ---
Dec. 31, 2020
Bank Stocks |
Bank Stocks | (4) Bank Stocks Bank stocks primarily consist of restricted investments in FHLB and Federal Reserve Bank (“FRB”) stock. The carrying value of the FHLB stock at December 31, 2020 was $2.4 million compared to $1.1 million at December 31, 2019. The carrying value of the FRB stock was $1.9 million at both December 31, 2020 and 2019. These securities are not readily marketable and are required for regulatory purposes and borrowing availability. Since there are no available market values, these securities are carried at cost. Redemption of these investments at par value is at the option of the FHLB or FRB, as applicable. Also included in Bank stocks are other miscellaneous investments in the common stock of various correspondent banks which are held for borrowing purposes and totaled $111,000 at December 31, 2020 and 2019.

X
- Definition The entire disclosure for investment securities primarily consist of restricted investments in FHLB and Federal Reserve Bank ("FRB") stock. + References No definition available. + Details
Name: | LARK_BankStocksDisclosureTextBlock
Namespace Prefix: | LARK_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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