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Segment Information - Summary of Company's Reportable Segments (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 86,433 | $ 88,299 | $ 83,220 | $ 78,682 | $ 91,961 | $ 89,046 | $ 87,869 | $ 85,790 | $ 336,634 | $ 354,666 | $ 388,185
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 291 | 391 | 483
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (844) | (565) | (658)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 5,698 | 5,031 | 8,549
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 5,100 | $ 4,742 | $ 2,755 | $ 2,658 | 3,045 | $ 206 | $ 3,680 | $ (256) | 15,255 | 6,675 | 12,861
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 24,725 | 10,754 | 17,663
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 11,996 | 11,532 | 12,857
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 340,937 |  |  |  | 323,370 |  |  |  | 340,937 | 323,370 |
Operating Segments [Member] | PLP-USA [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 135,260 | 142,470 | 152,567
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (738) | (440) | (427)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 1,494 | 2,387 | 4,576
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 2,007 | 2,031 | 7,233
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 18,314 | 5,164 | 7,673
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 4,937 | 4,551 | 4,521
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 122,326 |  |  |  | 106,854 |  |  |  | 122,326 | 106,854 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 54,048 |  |  |  | 40,638 |  |  |  | 54,048 | 40,638 |
Operating Segments [Member] | The Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 60,049 | 59,290 | 75,868
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 79 | 145 | 129
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (14) | (56) | (130)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 2,507 | 1,399 | 930
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 5,881 | 3,178 | 2,647
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 2,634 | 2,074 | 4,788
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,874 | 1,862 | 2,464
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 63,643 |  |  |  | 60,010 |  |  |  | 63,643 | 60,010 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 16,158 |  |  |  | 14,937 |  |  |  | 16,158 | 14,937 |
Operating Segments [Member] | EMEA [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 56,411 | 53,778 | 65,446
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 116 | 123 | 223
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (13) | (23) | (54)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 1,862 | 1,646 | 2,122
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 6,243 | 4,881 | 6,192
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 1,450 | 1,673 | 1,375
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,402 | 1,464 | 1,790
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 54,493 |  |  |  | 50,755 |  |  |  | 54,493 | 50,755 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 10,619 |  |  |  | 11,232 |  |  |  | 10,619 | 11,232 |
Operating Segments [Member] | Asia-Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 84,914 | 99,128 | 94,304
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 96 | 123 | 131
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (79) | (46) | (47)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | (165) | (401) | 921
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 1,124 | (3,415) | (3,211)
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 2,327 | 1,843 | 3,827
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,783 | 3,655 | 4,082
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 100,475 |  |  |  | 105,437 |  |  |  | 100,475 | 105,437 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 24,279 |  |  |  | 25,158 |  |  |  | 24,279 | 25,158 |
Segment Reconciling Items [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 336,634 | 354,666 | 388,185
Interest income |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 291 | 391 | 483
Interest expense |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (844) | (565) | (658)
Income taxes |  |  |  |  |  |  |  |  |  |  |
Income taxes |  |  |  |  |  |  |  |  | 5,698 | 5,031 | 8,549
Net income (loss) |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  |  |  | 15,255 | 6,675 | 12,861
Expenditure for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Expenditure for long-lived assets |  |  |  |  |  |  |  |  | 24,725 | 10,754 | 17,663
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 11,996 | 11,532 | 12,857
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | 340,937 |  |  |  | 323,056 |  |  |  | 340,937 | 323,056 |
Long-lived assets |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 105,104 |  |  |  | 91,965 |  |  |  | 105,104 | 91,965 |
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 23,793 | 24,429 | 32,334
Intersegment Eliminations [Member] | PLP-USA [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 9,471 | 9,339 | 12,690
Intersegment Eliminations [Member] | The Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 5,132 | 5,074 | 5,875
Intersegment Eliminations [Member] | EMEA [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 1,363 | 1,652 | 1,848
Intersegment Eliminations [Member] | Asia-Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  |  |  |
Intersegment sales |  |  |  |  |  |  |  |  | 7,827 | 8,364 | $ 11,921
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Identifiable assets |  |  |  |  |  |  |  |  |  |  |
Assets | $ 0 |  |  |  | $ 314 |  |  |  | $ 0 | $ 314 |

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