XML 119 R107.htm IDEA: XBRL DOCUMENT v3.21.2

Note Payable (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
PPP Note [Member]
Note Payable (Details) [Line Items]
Principal amount	$ 507

X

- References

No definition available.

+ Details

Name:	xl1_NotePayableDetailsLineItems
Namespace Prefix:	xl1_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of principal amount.

+ References

No definition available.

+ Details

Name:	xl1_PrincipalAmount
Namespace Prefix:	xl1_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentAxis=xl1_PPPNoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: