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Consolidated Statement of Changes in Stockholders' Equity - USD ($) | Total | Preferred | Common Stock | Additional Paid-in Capital | Retained Earnings | Treasury Stock
--- | --- | --- | --- | --- | --- | ---
Balance at Jun. 30, 2012 |  | $ 46,622,788 | $ 317 | $ 28,670 | $ 29,416,914 | $ 18,058,909 | $ (882,022)
Balance (in shares) at Jun. 30, 2012 |  |  | 317,319 | 27,882,224 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Issuance of restricted common stock |  | 32 |  | $ 211 | (179) |  |
Issuance of restricted common stock (shares) |  |  |  | 211,197 |  |  |
Exercise of stock options |  | $ 70,719 |  | $ 529 | 70,190 |  |
Exercise of stock options (shares) |  | 550,000 |  | 529,237 |  |  |
Stock exchanged for payroll tax liabilities |  | $ (137,818) |  |  |  |  | (137,818)
Stock exchanged for payroll tax liabilities (in shares) |  |  |  | (13,689) |  |  |
Stock-based compensation |  | 1,531,745 |  |  | 1,531,745 |  |
Tax benefits related to stock-based compensation |  | 794,569 |  |  | 794,569 |  |
Net income |  | 6,628,428 |  |  |  | 6,628,428 |
Preferred stock cash dividends |  | (674,302) |  |  |  | (674,302) |
Balance at Jun. 30, 2013 |  | 54,836,161 | $ 317 | $ 29,410 | 31,813,239 | 24,013,035 | (1,019,840)
Balance (in shares) at Jun. 30, 2013 |  |  | 317,319 | 28,608,969 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Issuance of restricted common stock |  | 0 |  | $ 40 | (40) |  |
Issuance of restricted common stock (shares) |  |  |  | 39,732 |  |  |
Exercise of warrants |  |  |  | $ 905 | (905) |  |
Exercise of warrants (in shares) |  |  |  | 905,391 |  |  |
Exercise of stock options |  | 3,871,407 |  | $ 3,299 | 3,868,108 |  |
Exercise of stock options (shares) |  |  |  | 3,299,367 |  |  |
Forfeiture of restricted stock |  |  |  | $ (51) | 51 |  |
Forfeiture of restricted stock (in shares) |  |  |  | (51,099) |  |  |
Acquisitions of treasury stock |  | $ (2,273,857) |  |  |  |  | (2,273,857)
Acquisitions of treasury stock (shares) |  | (186,714) |  | (186,714) |  |  |
Retirements of treasury stock |  | $ 0 |  | $ (988) | (3,292,709) |  | 3,293,697
Stock-based compensation | [1] | 1,728,687 |  |  | 1,728,687 |  |
Tax benefits related to stock-based compensation |  | 509,096 |  |  | 509,096 |  |
Net income |  | 3,597,313 |  |  |  | 3,597,313 |
Common stock cash dividends |  | (9,723,833) |  |  |  | (9,723,833) |
Preferred stock cash dividends |  | (674,302) |  |  |  | (674,302) |
Recovery of short swing profits |  | 6,850 |  |  | 6,850 |  |
Balance at Jun. 30, 2014 |  | 51,877,522 | $ 317 | $ 32,615 | 34,632,377 | 17,212,213 | 0
Balance (in shares) at Jun. 30, 2014 |  |  | 317,319 | 32,615,646 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Issuance of restricted common stock |  | 67 |  | $ 214 | (147) |  |
Issuance of restricted common stock (shares) |  |  |  | 213,466 |  |  |
Exercise of stock options |  | $ 141,600 |  | $ 87 | 141,513 |  |
Exercise of stock options (shares) |  | 87,000 |  | 87,000 |  |  |
Acquisitions of treasury stock |  | $ (504,124) |  |  |  |  | (504,124)
Acquisitions of treasury stock (shares) |  |  |  | (70,907) |  |  |
Retirements of treasury stock |  | 0 |  | $ (71) | (504,053) |  | 504,124
Stock-based compensation |  | 943,653 |  |  | 943,653 |  |
Tax benefits related to stock-based compensation |  | 1,633,946 |  |  | 1,633,946 |  |
Net income |  | 4,991,857 |  |  |  | 4,991,857 |
Common stock cash dividends |  | (9,833,642) |  |  |  | (9,833,642) |
Preferred stock cash dividends |  | (674,302) |  |  |  | (674,302) |
Balance at Jun. 30, 2015 |  | $ 48,576,577 | $ 317 | $ 32,845 | $ 36,847,289 | $ 11,696,126 | $ 0
Balance (in shares) at Jun. 30, 2015 |  |  | 317,319 | 32,845,205 |  |  |
[1] | Includes $376,365 of stock compensation reflected in restructuring charges.

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