|
Deferred Tax Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
| Deferred tax assets: |
|
|
|
| Accrued liabilities not currently deductible |
$ 1,589 |
$ 1,631 |
|
| Intangible assets-excess of financial statement over tax amortization |
12,156 |
14,208 |
|
| Goodwill recognized on financial statements in excess of tax amortization |
11,864 |
15,420 |
|
| Stock-based compensation |
4,542 |
5,158 |
|
| Federal net operating losses and AMT credit carryforwards |
5,209 |
3,897 |
|
| State and city net operating loss carryforwards |
5,964 |
5,883 |
|
| Research & experimental tax credit carryforwards |
2,626 |
2,613 |
|
| Other |
852 |
582 |
|
| Gross deferred tax assets |
44,802 |
49,392 |
|
| Valuation allowance |
(44,802) |
(23,034) |
(21,600) |
| Net deferred tax assets |
|
26,358 |
|
| Deferred tax liabilities: |
|
|
|
| Excess of tax over financial statement depreciation |
|
204 |
|
| Total deferred tax liabilities |
|
204 |
|
| Net deferred tax assets |
|
$ 26,154 |
|