Fair Value Measurements - Hierarchy Levels (Details) - Recurring basis - USD ($)
|
Jan. 31, 2016 |
Jul. 31, 2015 |
| Assets: |
|
|
| Total assets |
$ 880,000
|
$ 1,680,000
|
| Liabilities: |
|
|
| Total liabilities |
1,918,000
|
2,777,000
|
| Accrued expenses |
|
|
| Liabilities: |
|
|
| Assumed contingent obligation |
12,000
|
12,000
|
| Contingent guaranteed obligation |
461,000
|
566,000
|
| Total accrued expenses |
473,000
|
578,000
|
| Other long-term liabilities |
|
|
| Liabilities: |
|
|
| Contingent consideration |
143,000
|
751,000
|
| Assumed contingent obligation |
1,126,000
|
1,126,000
|
| Contingent guaranteed obligation |
176,000
|
322,000
|
| Total other long-term liabilities |
1,445,000
|
2,199,000
|
| Money markets | Cash and cash equivalents |
|
|
| Assets: |
|
|
| Money markets |
880,000
|
1,680,000
|
| Level 1 |
|
|
| Assets: |
|
|
| Total assets |
880,000
|
1,680,000
|
| Level 1 | Money markets | Cash and cash equivalents |
|
|
| Assets: |
|
|
| Money markets |
880,000
|
1,680,000
|
| Level 3 |
|
|
| Liabilities: |
|
|
| Total liabilities |
1,918,000
|
2,777,000
|
| Level 3 | Accrued expenses |
|
|
| Liabilities: |
|
|
| Assumed contingent obligation |
12,000
|
12,000
|
| Contingent guaranteed obligation |
461,000
|
566,000
|
| Total accrued expenses |
473,000
|
578,000
|
| Level 3 | Other long-term liabilities |
|
|
| Liabilities: |
|
|
| Contingent consideration |
143,000
|
751,000
|
| Assumed contingent obligation |
1,126,000
|
1,126,000
|
| Contingent guaranteed obligation |
176,000
|
322,000
|
| Total other long-term liabilities |
$ 1,445,000
|
$ 2,199,000
|