Leases - Narrative (Details)	6 Months Ended
Jun. 30, 2026 lease
Leases [Abstract]
Number of leases	2
Number of finance leases	3
Number of leases entered into during period	1

Lessee, Number Of Finance Leases Entered Into During Period

No definition available.

Name:	tlsi_LesseeNumberOfFinanceLeasesEnteredIntoDuringPeriod
Namespace Prefix:	tlsi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration