Earning Per Share - Schedule of Dilutive Securities Included in Computation of Earnings Per Share (Detail) - shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Warrants	1,537,484
Share-based compensation awards	161,100
Total dilutive securities	1,698,584	0

Dilutive securities, effect on basic earnings per share, share based compensation awards.

No definition available.

Name:	lnkb_DilutiveSecuritiesEffectOnBasicEarningsPerShareShareBasedCompensationAwards
Namespace Prefix:	lnkb_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration