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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Allowance for credit losses | $ 2,545 | $ 2,427 |
Amounts pledged | 546,334 | 518,123 |
Office facilities, net accumulated depreciation | 104,961 | 103,547 |
Net deferred tax assets | 63,481 | 68,622 |
Notes receivable, net accumulated amortization | 54,919 | 42,211 |
Notes receivable, net allowance for uncollectibles | $ 8,444 | $ 8,606 |
Class A Stock |  |  |
Common stock, authorized (in shares) | 50,000,000 | 50,000,000 |
Common stock, issued (in shares) | 13,238,486 | 13,530,688 |
Common stock, outstanding (in shares) | 13,238,486 | 13,530,688 | 13,377,967
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
Class B Stock |  |  |
Common stock, authorized (in shares) | 99,680 | 99,680 |
Common stock, issued (in shares) | 99,680 | 99,680 |
Common stock, outstanding (in shares) | 99,680 | 99,680 |
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |

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