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Quarterly Financial Information (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Information (Unaudited) | Quarterly Financial Information (Unaudited) Quarterly financial information for the years ended December 31, 2018 and 2017 is presented below:
|  | Three Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | March 31, 2018 |  |  |  | June 30, 2018 |  |  |  | September 30, 2018 |  |  |  | December 31, 2018 |  |
|  | As originally reported under LIFO |  | As adjusted under average cost |  | As originally reported under LIFO |  | As adjusted under average cost |  | As originally reported under LIFO |  | As adjusted under average cost |  |  |  |
Net sales |  | $ | 122,454 |  | $ | 122,454 |  | $ | 172,890 |  | $ | 172,890 |  | $ | 167,094 |  | $ | 167,094 |  | $ | 164,531 |  |
Gross profit |  | $ | 22,028 |  | $ | 22,192 |  | $ | 32,514 |  | $ | 33,063 |  | $ | 29,602 |  | $ | 31,303 |  | $ | 30,601 |  |
Net (loss) income |  | $ | (2,022) |  | $ | (1,858) |  | $ | 4,940 |  | $ | 5,434 |  | $ | 4,971 |  | $ | 6,408 |  | $ | (41,152) |  |
Basic (loss) earnings per common share |  | $ | (0.20) |  | $ | (0.18) |  | $ | 0.48 |  | $ | 0.52 |  | $ | 0.48 |  | $ | 0.62 |  | $ | (3.97) |  |
Diluted (loss) earnings per common share |  | $ | (0.20) |  | $ | (0.18) |  | $ | 0.47 |  | $ | 0.52 |  | $ | 0.47 |  | $ | 0.61 |  | $ | (3.97) |  |
|  | Three Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | March 31, 2017 |  |  |  | June 30, 2017 |  |  |  | September 30, 2017 |  |  |  | December 31, 2017 |  |
|  | As originally reported under LIFO |  | As adjusted under average cost |  | As originally reported under LIFO |  | As adjusted under average cost |  | As originally reported under LIFO |  | As adjusted under average cost |  | As originally reported under LIFO |  | As adjusted under average cost
Net sales |  | $ | 118,702 |  | $ | 118,702 |  | $ | 144,860 |  | $ | 144,860 |  | $ | 131,492 |  | $ | 131,492 |  | $ | 141,323 |  | $ | 141,323
Gross profit |  | $ | 21,252 |  | $ | 21,241 |  | $ | 27,736 |  | $ | 27,928 |  | $ | 26,365 |  | $ | 27,917 |  | $ | 27,899 |  | $ | 28,175
Net (loss) income |  | $ | (2,422) |  | $ | (2,433) |  | $ | 3,024 |  | $ | 3,216 |  | $ | 3,222 |  | $ | 4,500 |  | $ | 289 |  | $ | 78
Basic (loss) earnings per common share |  | $ | (0.23) |  | $ | (0.24) |  | $ | 0.29 |  | $ | 0.31 |  | $ | 0.31 |  | $ | 0.44 |  | $ | 0.03 |  | $ | 0.01
Diluted (loss) earnings per common share |  | $ | (0.23) |  | $ | (0.24) |  | $ | 0.29 |  | $ | 0.31 |  | $ | 0.31 |  | $ | 0.43 |  | $ | 0.03 |  | $ | 0.01

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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