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Consolidated Statements Of Changes In Stockholders' Equity - USD ($) | Class A Common Stock Common Stock [Member] | Class A Common Stock Retained Earnings | Class A Common Stock | Class B Common Stock Common Stock [Member] | Class B Common Stock Retained Earnings | Class B Common Stock | Paid-in Capital in Excess of Par Value | Retained Earnings | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Sep. 29, 2012 | 12,953,635 |  |  | 11,306,141 |  |  |  |  |
Balance at Sep. 29, 2012 | $ 647,682 |  |  | $ 565,307 |  |  | $ 114,236,249 | $ 341,964,231 | $ 457,413,469
Net income |  |  |  |  |  |  |  | 20,795,890 | 20,795,890
Cash dividends |  | $ (17,141,839) | $ (17,141,839) |  | $ (13,303,245) | $ (13,303,245) |  |  |
Common stock conversions | $ 24,217 |  |  | $ (24,217) |  |  |  |  |
Common stock conversions (in shares) | 484,340 |  |  | (484,340) |  |  |  |  |
Stock repurchases, at cost |  |  |  | $ (75,000) |  |  | (37,050,000) |  | (37,125,000)
Stock repurchases, at cost (in shares) |  |  |  | (1,500,000) |  |  |  |  |
Balance (in shares) at Sep. 28, 2013 | 13,437,975 |  |  | 9,321,801 |  |  |  |  |
Balance at Sep. 28, 2013 | $ 671,899 |  |  | $ 466,090 |  |  | 77,186,249 | 332,315,037 | 410,639,275
Net income |  |  |  |  |  |  |  | 51,426,454 | 51,426,454
Cash dividends |  | (8,894,632) | (8,894,632) |  | (5,568,930) | $ (5,568,930) |  |  |
Common stock conversions | $ 5,118 |  |  | $ (5,118) |  |  |  |  |
Common stock conversions (in shares) | 102,358 |  |  | (102,358) |  |  |  |  |
Stock repurchases, at cost |  |  |  | $ (125,000) |  |  | (64,875,000) |  | $ (65,000,000)
Stock repurchases, at cost (in shares) |  |  |  | (2,500,000) |  | (2,500,000) |  |  | (4,000,000)
Balance (in shares) at Sep. 27, 2014 | 13,540,333 |  |  | 6,719,443 |  |  |  |  |
Balance at Sep. 27, 2014 | $ 677,017 |  |  | $ 335,972 |  |  | 12,311,249 | 369,277,929 | $ 382,602,167
Net income |  |  |  |  |  |  |  | 59,353,123 | 59,353,123
Cash dividends |  | $ (9,020,232) | $ (9,020,232) |  | $ (3,956,658) | $ (3,956,658) |  |  |
Common stock conversions | $ 19,216 |  |  | $ (19,216) |  |  |  |  |
Common stock conversions (in shares) | 384,318 |  |  | (384,318) |  |  |  |  |
Balance (in shares) at Sep. 26, 2015 | 13,924,651 |  |  | 6,335,125 |  |  |  |  |
Balance at Sep. 26, 2015 | $ 696,233 |  |  | $ 316,756 |  |  | $ 12,311,249 | $ 415,654,162 | $ 428,978,400

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