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Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Deferred Tax Assets, Net, Noncurrent | $ 3,337 | $ 34,812 |
Deferred Tax Liabilities, Net, Noncurrent | $ 17,278 | $ 4,950 |
Effective Income Tax Rate Reconciliation, Percent | 36.80% | 36.80% | 32.40%
Tax Credit Carry Forward State Research and Development | $ 17,498 |  |
Tax Credit Carryforward State Manufacturing | 3,736 |  |
Unrecognized Tax Benefits, Interest on Income Taxes Expense | 272 | $ 174 | $ 86
Unrecognized Tax Benefits, Income Tax Penalties Expense | 425 | $ 363 | $ 263
Undistributed Earnings of Foreign Subsidiaries | 7,551 |  |
CCMP Acquisition [Member] |  |  |
Future Tax Benefits, Intangible Assets (Including Goodwill), Amortization | 592,000 |  |
Recognition of Tax Benefits, Expected Aggregate Cash Tax Savings, Upon Recognition | 231,000 |  |
Recognition of Tax Benefits, Expected Amount of Recognition, Next Twelve Months | 122,000 |  |
Recognition of Tax Benefits, Expected Amount of Recognition, in Year Five | 102,000 |  |
Recognition of Tax Benefits, Expected Cash Tax Savings, Next Twelve Months | 48,000 |  |
Recognition of Tax Benefits, Expected Cash Tax Savings, in Year Five | 40,000 |  |
Recognition of Tax Benefits, Expected Amount of Recognition, in Year Two | 122,000 |  |
Recognition of Tax Benefits, Expected Amount of Recognition, in Year Three | 122,000 |  |
Recognition of Tax Benefits, Expected Amount of Recognition, in Year Four | 122,000 |  |
Recognition of Tax Benefits, Expected Cash Tax Savings, in Year Two | 48,000 |  |
Recognition of Tax Benefits, Expected Cash Tax Savings, in Year Thre | 48,000 |  |
Recognition of Tax Benefits, Expected Cash Tax Savings, in Year Four | $ 48,000 |  |

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