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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, 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 |  |  |
Treasury stock, beginning balance (in shares) at Jul. 31, 2015 |  |  |  |  | 15,033,317
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Equity-classified stock award compensation | 2,084,000 |  | 2,084,000 |  |
Proceeds from issuance of employee stock purchase plan shares | 348,000 | $ 2,000 | 346,000 |  |
Proceeds from issuance of employee stock purchase plan shares (in shares) |  | 20,131 |  |  |
Common stock issued for net settlement of stock-based awards | (73,000) | $ 1,000 | (74,000) |  |
Common stock issued for net settlement of stock-based awards (in shares) |  | 9,925 |  |  |
Cash dividends declared, net | (9,692,000) |  |  | (9,692,000) |
Accrual of dividend equivalents, net of reversal | (41,000) |  |  | (41,000) |
Net income tax shortfall from settlement of stock-based awards | (43,000) |  | (43,000) |  |
Reversal of deferred tax assets associated with expired and unexercised stock-based awards | (35,000) |  | (35,000) |  |
Net income | 3,915,000 |  |  | 3,915,000 |
Ending balance at Jan. 31, 2016 | 397,872,000 | $ 3,120,000 | 429,361,000 | 407,240,000 | $ (441,849,000)
Common stock, ending balance (in shares) at Jan. 31, 2016 |  | 31,195,457 |  |  |
Treasury stock, ending balance (in shares) at Jan. 31, 2016 |  |  |  |  | 15,033,317
Beginning balance at Jul. 31, 2016 | $ 470,401,000 | $ 3,837,000 | 524,797,000 | 383,616,000 | $ (441,849,000)
Common stock, beginning balance (in shares) at Jul. 31, 2016 | 38,367,997 | 38,367,997 |  |  |
Treasury stock, beginning balance (in shares) at Jul. 31, 2016 | 15,033,317 |  |  |  | 15,033,317
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Equity-classified stock award compensation | $ 1,989,000 |  | 1,989,000 |  |
Proceeds from issuance of employee stock purchase plan shares | 348,000 | $ 3,000 | 345,000 |  |
Proceeds from issuance of employee stock purchase plan shares (in shares) |  | 33,226 |  |  |
Issuance of restricted stock | 0 | $ 15,000 | (15,000) |  |
Issuance of restricted stock (in shares) |  | 144,899 |  |  |
Common stock issued for net settlement of stock-based awards | (244,000) | $ 4,000 | (248,000) |  |
Common stock issued for net settlement of stock-based awards (in shares) |  | 40,354 |  |  |
Cash dividends declared, net | (9,351,000) |  |  | (9,351,000) |
Accrual of dividend equivalents, net of reversal | (179,000) |  |  | (179,000) |
Net income tax shortfall from settlement of stock-based awards | (257,000) |  | (257,000) |  |
Reversal of deferred tax assets associated with expired and unexercised stock-based awards | (344,000) |  | (344,000) |  |
Net income | 4,096,000 |  |  | 4,096,000 |
Ending balance at Jan. 31, 2017 | $ 466,459,000 | $ 3,859,000 | $ 526,267,000 | $ 378,182,000 | $ (441,849,000)
Common stock, ending balance (in shares) at Jan. 31, 2017 | 38,586,476 | 38,586,476 |  |  |
Treasury stock, ending balance (in shares) at Jan. 31, 2017 | 15,033,317 |  |  |  | 15,033,317

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