Loans Receivables, net (Details Narrative) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Receivables [Abstract]
Unfunded loan commitments	$ 33,254	$ 23,557
Unfunded commitments	$ 191	$ 140

Allowance for credit losses on unfunded loan commitments.

No definition available.

Name:	SHEPH_AllowanceForCreditLossesOnUnfundedLoanCommitments
Namespace Prefix:	SHEPH_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration