(4) Debt (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Short term credit facility	$ 200,000	$ 300,000
Warehouse Lines Of Credit [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs	1,200	1,500
Residual Interest Financings
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ 57	$ 150

Amount of unamortized debt discount (premium) and debt issuance costs.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant