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Significant Customers (Details Narrative) - Supply Commitment [Member]	Sep. 30, 2025
Supply Commitment [Line Items]
Equipment sale - net book value	115.00%
Equipment sale- original book value	30.00%

X

- Definition

The element represents equipment sale net book value equipment.

+ References

No definition available.

+ Details

Name:	slsn_EquipmentSaleNetBookValueEquipment
Namespace Prefix:	slsn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The element represents equipment sale original book value of equipment and upgrades.

+ References

No definition available.

+ Details

Name:	slsn_EquipmentSaleOriginalBookValueOfEquipmentAndUpgrades
Namespace Prefix:	slsn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SupplyCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SupplyCommitmentAxis=us-gaap_SupplyCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: