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Income Taxes (Tables) | 12 Months Ended
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Jul. 31, 2018
Income Taxes [Abstract] |
Components of income before income taxes |
Year ended July 31 (in thousands) |  | 2018 |  |  | 2017 |  |  | 2016 |
Domestic |  | $ | 910 |  |  | $ | (3,161 | ) |  | $ | 11,278 |
Foreign |  |  | 7,191 |  |  |  | 10,781 |  |  |  | 18,190 |
INCOME BEFORE INCOME TAXES |  | $ | 8,101 |  |  | $ | 7,620 |  |  | $ | 29,468 |
Schedule of deferred income tax assets |
July 31 (in thousands) |  | 2018 |  |  | 2017 |
Deferred income tax assets: |  |  |  |  |  |
Bad debt reserve |  | $ | 455 |  |  | $ | 535 |
Accrued expenses |  |  | 3,758 |  |  |  | 7,888 |
Stock options and restricted stock |  |  | 1,070 |  |  |  | 1,608 |
Charitable contributions |  |  | 946 |  |  |  | 1,768 |
Depreciation |  |  | 349 |  |  |  | 4,438 |
Unrealized gain |  |  | — |  |  |  | 317 |
Net operating loss |  |  | 75,110 |  |  |  | 122,260 |
Credits |  |  | — |  |  |  | 2,899 |
Total deferred income tax assets |  |  | 81,688 |  |  |  | 141,713 |
Valuation allowance |  |  | (76,020 | ) |  |  | (129,872 | )
NET DEFERRED INCOME TAX ASSETS |  | $ | 5,668 |  |  | $ | 11,841 |
Schedule of (provision for) benefit from income taxes |
Year ended July 31 (in thousands) |  | 2018 |  |  | 2017 |  |  | 2016 |
Current: |  |  |  |  |  |  |  |  |
Federal |  | $ | 3,294 |  |  | $ | — |  |  | $ | (83 | )
State and local |  |  | (34 | ) |  |  | (26 | ) |  |  | (30 | )
Foreign |  |  | 11 |  |  |  | (282 | ) |  |  | (185 | )
|  |  | 3,271 |  |  |  | (308 | ) |  |  | (298 | )
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | — |  |  |  | (9,536 | ) |  |  | (3,148 | )
State and local |  |  | 12 |  |  |  | (66 | ) |  |  | (51 | )
Foreign |  |  | (6,185 | ) |  |  | 11,931 |  |  |  | (613 | )
|  |  | (6,173 | ) |  |  | 2,329 |  |  |  | (3,812 | )
(PROVISION FOR) BENEFIT FROM INCOME TAXES |  | $ | (2,902 | ) |  | $ | 2,021 |  |  | $ | (4,110 | )
Schedule of U.S. federal statutory income tax rate and income taxes provided |
Year ended July 31 (in thousands) |  | 2018 |  |  | 2017 |  |  | 2016 |
U.S. federal income tax at statutory rate |  | $ | (2,186 | ) |  | $ | (2,667 | ) |  | $ | (10,314 | )
Transition tax on foreign earnings |  |  | (3,360 | ) |  |  | — |  |  |  | — |
Valuation allowance |  |  | 58,798 |  |  |  | 626 |  |  |  | — |
Foreign tax rate differential |  |  | (4,272 | ) |  |  | 3,107 |  |  |  | 6,035 |
Nondeductible expenses |  |  | 213 |  |  |  | 457 |  |  |  | 487 |
Other |  |  | (23 | ) |  |  | 64 |  |  |  | (67 | )
Prior year tax benefit (expense) |  |  | 575 |  |  |  | 494 |  |  |  | (231 | )
U.S. federal tax law change |  |  | (52,631 | ) |  |  | — |  |  |  | — |
State and local income tax, net of federal benefit |  |  | (16 | ) |  |  | (60 | ) |  |  | (20 | )
(PROVISION FOR) BENEFIT FROM INCOME TAXES |  | $ | (2,902 | ) |  | $ | 2,021 |  |  | $ | (4,110 | )
Schedule of change in the valuation allowance |
Year ended July 31 (in thousands) |  | Balance at beginning of year |  |  | Additions charged to costs and expenses |  |  | Deductions |  |  | Balance at end of year |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from deferred income taxes, net: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation allowance |  | $ | 129,872 |  |  | $ | — |  |  | $ | (53,852 | ) |  | $ | 76,020 |
2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from deferred income taxes, net: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation allowance |  | $ | 130,498 |  |  | $ | 16,017 |  |  | $ | (16,643 | ) |  | $ | 129,872 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from deferred income taxes, net: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valuation allowance |  | $ | 127,449 |  |  | $ | 3,049 |  |  | $ | — |  |  | $ | 130,498 |

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