Unpaid Loss and Loss Adjustment Expenses Reconciliation of the net incurred and paid loss and loss adjustment expenses development tables (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Liabilities for loss and allocated loss adjustment expenses, net of reinsurance	$ 1,760	$ 2,028
Total reinsurance recoverable on unpaid loss and loss adjustment expenses	0	0
Total gross liability for unpaid loss and loss adjustment expenses	1,774	2,073
Non-standard automobile - private passenger auto liability
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Liabilities for loss and allocated loss adjustment expenses, net of reinsurance	462	680
Commercial automobile
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Liabilities for loss and allocated loss adjustment expenses, net of reinsurance	73	756
Other short-duration insurance lines
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Liabilities for loss and allocated loss adjustment expenses, net of reinsurance	1,225	592
Unallocated loss adjustment expenses	$ 14	$ 45