Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Sep. 15, 2015
Allowance for credit losses	$ 451	$ 886
Amounts pledged	357,100	518,000
Furniture equipment and leasehold improvements, net accumulated depreciation	94,773	89,182
Net deferred tax assets	43,630	41,722
Notes Receivable, Net Accumulated Amortization	38,355	25,109
Notes Receivable, Net Allowance for Uncollectibles	3,673	6,800
Unamortized debt issuance expense	485	904
Operating Lease Right-of-use Asset Accumulated Amortization	$ 25,186	$ 0
Common Class A [Member]
Common stock, authorized	50,000,000	50,000,000
Common stock, shares issued	12,698,703	12,941,809
Common stock, shares outstanding	12,698,703	12,941,809	13,139,203	13,348,369
Common stock, par value	$ 0.001	$ 0.001
Class B Stock
Common stock, authorized	99,665	99,665
Common stock, shares issued	99,665	99,665
Common stock, shares outstanding	99,665	99,665
Common stock, par value	$ 0.001	$ 0.001