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Accounting Policies and Basis of Presentation (Detail) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 14, 2016 | Mar. 21, 2016 | Apr. 21, 2015 | Mar. 26, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Accounting Policies [Abstract] |  |  |  |  |  |  |  |  |
Shipping and handling revenue |  |  |  |  | $ 3,939 | $ 4,577 | $ 8,076 | $ 8,878 |
Debt instrument, fair value disclosure |  |  |  |  | 42,399 |  | 42,399 |  | $ 34,603
Long-term debt, gross |  |  |  |  | 41,369 |  | 41,369 |  | 33,460
Unamortized loan fees |  |  |  |  | $ 667 |  | 667 |  | $ 636
Common stock, dividends, per share, declared (in Dollars per share) |  | $ 0.08 |  | $ 0.06 |  |  |  |  |
Payments of dividends | $ 1,378 |  | $ 1,087 |  |  |  | $ 1,378 | $ 1,087 |
Dividends paid with cash | 1,335 |  | 1,061 |  |  |  |  |  |
Dividend equivalent payments | $ 43 |  | $ 26 |  |  |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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