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SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS Adjustments for New Accounting Pronouncements (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Changes and Error Corrections [Abstract] |
New Accounting Pronouncements and Changes in Accounting Principles [Text Block] | The impact of adoption on the Company’s previously reported consolidated financial statements were as follows:
Consolidated Balance Sheet: | December 31, 2016
(In thousands) | As Reported |  | Impact of Adoption |  | As Adjusted
Accounts receivable, net | $ | 6,961 |  |  | $ | (433 | ) |  | $ | 6,528 |
Prepaid expenses and other current assets | 8,520 |  |  | 195 |  |  | 8,715 |
Deferred tax assets | 12,032 |  |  | (690 | ) |  | 11,342 |
Deferred income on sales to distributors | 16,207 |  |  | (16,207 | ) |  | — |
Other accrued liabilities | 2,434 |  |  | 300 |  |  | 2,734 |
Retained earnings | $ | 317,912 |  |  | $ | 14,979 |  |  | $ | 332,891 |
| Year Ended December 31,
Consolidated Statements of Income: | 2016 |  | 2015
(In thousands, except per share) | As Reported |  | Impact of Adoption |  | As Adjusted |  | As Reported |  | Impact of Adoption |  | As Adjusted
Net revenues | $ | 387,393 |  |  | $ | 2,275 |  |  | $ | 389,668 |  |  | $ | 343,989 |  |  | $ | 620 |  |  | $ | 344,609 |
Cost of revenues | 196,232 |  |  | 1,245 |  |  | 197,477 |  |  | 170,602 |  |  | 707 |  |  | 171,309 |
Provision for income taxes | 1,032 |  |  | 22 |  |  | 1,054 |  |  | 271 |  |  | (92 | ) |  | 179 |
Net income | $ | 47,890 |  |  | $ | 1,008 |  |  | $ | 48,898 |  |  | $ | 39,147 |  |  | $ | 5 |  |  | $ | 39,152 |
Earnings per share |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 1.66 |  |  | $ | 0.03 |  |  | $ | 1.69 |  |  | $ | 1.35 |  |  | $ | — |  |  | $ | 1.35 |
Diluted | $ | 1.62 |  |  | $ | 0.03 |  |  | $ | 1.65 |  |  | $ | 1.32 |  |  | $ | — |  |  | $ | 1.32 |
| Year Ended December 31,
Consolidated Statement of Cash Flows: | 2016 |  | 2015
(In thousands) | As Reported |  | Impact of Adoption |  | As Adjusted |  | As Reported |  | Impact of Adoption |  | As Adjusted
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 47,890 |  |  | $ | 1,008 |  |  | $ | 48,898 |  |  | $ | 39,147 |  |  | $ | 5 |  |  | $ | 39,152 |
Deferred income taxes | (660 | ) |  | 22 |  |  | (638 | ) |  | (5,416 | ) |  | (92 | ) |  | (5,508 | )
Accounts receivable | 650 |  |  | 101 |  |  | 751 |  |  | 4,131 |  |  | 13 |  |  | 4,144 |
Prepaid expenses and other assets | (2,499 | ) |  | (25 | ) |  | (2,524 | ) |  | 3,391 |  |  | (49 | ) |  | 3,342 |
Taxes payable and accrued liabilities | (1,124 | ) |  | — |  |  | (1,124 | ) |  | (76 | ) |  | 1 |  |  | (75 | )
Deferred income on sales to distributors | $ | 1,106 |  |  | $ | (1,106 | ) |  | $ | — |  |  | $ | (122 | ) |  | $ | 122 |  |  | $ | — |

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