Contingent Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Loss Contingencies [Line Items]
Litigation settlement expense			$ 2,200
Notification costs and other estimated expenses			100
Cash payment for litigation settlement relating to collection of vehicle service contracts counterparty receivables		$ 4,000
Aggregate amount of counterparty obligations	$ 2,176		2,271
Vehicle service contract counterparty contingencies	(100)	30
Provision for loss reimbursement on sold loans	30	(20)
Reserve for loss reimbursement on sold mortgage loans	$ 500		$ 600
Promissory Note [Member]
Loss Contingencies [Line Items]
Notes payable amount of settlement to counterparties		$ 1,500
Term of note	5 years
Full reserve on the remaining balance	$ 1,250
Accounts Receivables Due to Mepco [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Installment payments period for service contract	12 months
Accounts Receivables Due to Mepco [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Installment payments period for service contract	30 months