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Condensed Consolidated Statements of Stockholders' Equity - USD ($) | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | ---
Beginning balance at Jul. 31, 2014 | $ 396,925,000 | $ 3,102,000 | $ 421,240,000 | $ 409,443,000 | $ (436,860,000)
Common stock, beginning balance (in shares) at Jul. 31, 2014 |  | 31,016,469 |  |  |
Treasury stock, beginning balance (in shares) at Jul. 31, 2014 |  |  |  |  | 14,857,582
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Equity-classified stock award compensation | 3,642,000 |  | 3,642,000 |  |
Proceeds from exercise of options | 1,417,000 | $ 5,000 | 1,412,000 |  |
Proceeds from exercise of options (in shares) |  | 49,200 |  |  |
Proceeds from issuance of employee stock purchase plan shares | 707,000 | $ 2,000 | 705,000 |  |
Proceeds from issuance of employee stock purchase plan shares (in shares) |  | 25,768 |  |  |
Common stock issued for net settlement of stock-based awards | (420,000) | $ 6,000 | (426,000) |  |
Common stock issued for net settlement of stock-based awards (in shares) |  | 60,120 |  |  |
Cash dividends declared | (14,567,000) |  |  | (14,567,000) |
Accrual of dividend equivalents, net of reversal | (169,000) |  |  | (169,000) |
Net income tax shortfall from settlement of stock-based awards | (248,000) |  | (248,000) |  |
Reversal of deferred tax asset associated with debt converted to shares of common stock | (58,000) |  | (58,000) |  |
Reversal of deferred tax assets associated with expired and unexercised stock-based awards | (12,000) |  | (12,000) |  |
Repurchases of common stock | $ (4,989,000) |  |  |  | $ (4,989,000)
Repurchases of common stock (in shares) | 175,735 |  |  |  | 175,735
Net (loss) income | $ 17,770,000 |  |  | 17,770,000 |
Ending balance at Apr. 30, 2015 | 399,998,000 | $ 3,115,000 | 426,255,000 | 412,477,000 | $ (441,849,000)
Common stock, ending balance (in shares) at Apr. 30, 2015 |  | 31,151,557 |  |  |
Treasury stock, ending balance (in shares) at Apr. 30, 2015 |  |  |  |  | 15,033,317
Beginning balance at Jul. 31, 2015 | $ 401,409,000 | $ 3,117,000 | 427,083,000 | 413,058,000 | $ (441,849,000)
Common stock, beginning balance (in shares) at Jul. 31, 2015 | 31,165,401 | 31,165,401 |  |  |
Treasury stock, beginning balance (in shares) at Jul. 31, 2015 | 15,033,317 |  |  |  | 15,033,317
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Equity-classified stock award compensation | $ 3,125,000 |  | 3,125,000 |  |
Proceeds from issuance of employee stock purchase plan shares | 499,000 | $ 3,000 | 496,000 |  |
Proceeds from issuance of employee stock purchase plan shares (in shares) |  | 29,070 |  |  |
Common stock issued for net settlement of stock-based awards | (74,000) | $ 1,000 | (75,000) |  |
Common stock issued for net settlement of stock-based awards (in shares) |  | 9,925 |  |  |
Cash dividends declared | (14,544,000) |  |  | (14,544,000) |
Accrual of dividend equivalents, net of reversal | (97,000) |  |  | (97,000) |
Net income tax shortfall from settlement of stock-based awards | (25,000) |  | (25,000) |  |
Reversal of deferred tax assets associated with expired and unexercised stock-based awards | $ (55,000) |  | (55,000) |  |
Repurchases of common stock (in shares) | 0 |  |  |  |
Net (loss) income | $ (10,440,000) |  |  | (10,440,000) |
Ending balance at Apr. 30, 2016 | $ 379,798,000 | $ 3,121,000 | $ 430,549,000 | $ 387,977,000 | $ (441,849,000)
Common stock, ending balance (in shares) at Apr. 30, 2016 | 31,204,396 | 31,204,396 |  |  |
Treasury stock, ending balance (in shares) at Apr. 30, 2016 | 15,033,317 |  |  |  | 15,033,317

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