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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 3 Months Ended
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Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of accumulated other comprehensive loss | Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
|  | Unrealized gain (loss) on marketable securities |  | Net unrealized loss on retirement plan(2) |  | Total |  | Affected line items in the consolidated statements of income
Balance December 31, 2015, net of tax |  | $ | (111 | ) |  | $ | (9,708 | ) |  | $ | (9,819 | ) |  |
Other comprehensive income before reclassification |  | (151 | ) |  | — |  |  | (151 | ) |  |
Actuarial loss |  | — |  |  | (834 | ) |  | (834 | ) |  |
Reclassification to net income (1) |  | — |  |  | 282 |  |  | 282 |  |  | Selling, general and administrative and research and development
Change during period |  | (151 | ) |  | (552 | ) |  | (703 | ) |  |
Balance March 31, 2016, net of tax |  | $ | (262 | ) |  | $ | (10,260 | ) |  | $ | (10,522 | ) |  |
|  | Unrealized gain (loss) on marketable securities |  | Net unrealized loss on retirement plan(2) |  | Total |  | Affected line items in the consolidated statements of income
Balance December 31, 2014, net of tax |  | $ | (28 | ) |  | $ | (4,354 | ) |  | $ | (4,382 | ) |  |
Other comprehensive loss before reclassification |  | 14 |  |  | — |  |  | 14 |  |  |
Reclassification to net income (1) |  | — |  |  | 156 |  |  | 156 |  |  | Selling, general and administrative and research and development
Change during period |  | 14 |  |  | 156 |  |  | 170 |  |  |
Balance March 31, 2015, net of tax |  | $ | (14 | ) |  | $ | (4,198 | ) |  | $ | (4,212 | ) |  |
_______________________________________________ (1) The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income in the amounts of $282,000 and $156,000 for the three months ended March 31, 2016 and 2015, respectively. (2) Refer to Note 12: Supplemental Executive Retirement Plan.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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