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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Allowance for credit losses | $ 410 | $ 451
Amounts pledged | 440,531 | 357,120
Furniture equipment and leasehold improvements, net accumulated depreciation | 90,958 | 94,773
Accounts and Notes Receivable, Accumulated Amortization | 26,758 | 38,355
Beginning balance | 4,234 | 3,673
Unamortized debt issuance expense | 1,154 | 485
Operating Lease Right-of-use Asset Accumulated Amortization | 50,336 | 25,186
Deferred Income Tax Liabilities, Net |  |
Net deferred tax assets | $ 44,104 | $ 43,630
Common Class A [Member] |  |
Common stock, authorized | 50,000,000 | 50,000,000
Common stock, shares issued | 12,381,778 | 12,698,703
Common stock, shares outstanding | 12,381,778 | 12,698,703
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

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