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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) | Common Stock | Treasury Stock | Additional Paid in Capital | Retained Earnings | Total
--- | --- | --- | --- | --- | ---
Balance at Sep. 30, 2015 | $ 7,061 | $ (7,680,969) | $ 15,509,199 | $ 53,527,606 | $ 61,362,897
Balance (in shares) at Sep. 30, 2015 | 706,109 | (85,005) |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Dividends on common stock |  |  |  | (654,678) | (654,678)
Dividends on convertible preferred stock |  |  |  | (160,360) | (160,360)
Compensation expense and issuance of stock in connection with equity-based awards | $ 136 |  | 1,117,450 |  | 1,117,586
Compensation expense and issuance of stock in connection with equity-based awards (in shares) | 13,637 |  |  |  |
Proceeds from the exercise of stock options | $ 987 |  | 2,898,905 |  | 2,899,892
Proceeds from the exercise of stock options (in shares) | 98,707 |  |  |  |
Repurchase of common stock |  | $ (4,795,412) |  |  | (4,795,412)
Repurchase of common stock (in shares) |  | (56,391) |  |  |
Net income |  |  |  | 5,980,673 | 5,980,673
Balance at Sep. 30, 2016 | $ 8,184 | $ (12,476,381) | 19,525,554 | 58,693,241 | $ 65,750,598
Balance (in shares) at Sep. 30, 2016 | 818,453 | (141,396) |  |  | 677,057
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Dividends on common stock |  |  |  | (706,906) | $ (706,906)
Compensation expense and issuance of stock in connection with equity-based awards | $ 130 |  | 1,300,365 |  | 1,300,495
Compensation expense and issuance of stock in connection with equity-based awards (in shares) | 12,985 |  |  |  |
Repurchase of common stock |  | $ (1,124,921) |  |  | (1,124,921)
Repurchase of common stock (in shares) |  | (12,036) |  |  |
Net income |  |  |  | 2,949,576 | 2,949,576
Balance at Sep. 30, 2017 | $ 8,314 | $ (13,601,302) | $ 20,825,919 | $ 60,935,911 | $ 68,168,842
Balance (in shares) at Sep. 30, 2017 | 831,438 | (153,432) |  |  | 678,006

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