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Selected Quarterly Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2017
Selected Quarterly Financial Data [Abstract] |
Schedule of Quarterly Financial Information |
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﻿ |  | First |  | Second |  | Third |  | Fourth
﻿2017 |  | Quarter |  | Quarter |  | Quarter |  | Quarter
﻿Revenues | $ | 139,536 | $ | 118,672 | $ | 72,025 | $ | 79,241
﻿Gross profit | $ | 9,890 | $ | 5,328 | $ | (7,838) | $ | (4,049)
﻿Net income (loss) (1) (2) (3) | $ | 638 | $ | (448) | $ | (11,614) | $ | (11,138)
﻿Net income (loss) per common share-basic | $ | 0.05 | $ | (0.04) | $ | (0.94) | $ | (0.90)
﻿Net income (loss) per common share-diluted | $ | 0.05 | $ | (0.04) | $ | (0.94) | $ | (0.90)
﻿ |  |  |  |  |  |  |  |
﻿2016 |  |  |  |  |  |  |  |
﻿Revenues | $ | 148,590 | $ | 126,157 | $ | 113,461 | $ | 135,523
﻿Gross profit | $ | 15,887 | $ | 8,077 | $ | 9,489 | $ | 6,726
﻿Net income (loss) (4) (5) | $ | 12,667 | $ | (468) | $ | 51 | $ | 74
﻿Net income (loss) per common share-basic | $ | 1.03 | $ | (0.04) | $ | - | $ | 0.01
﻿Net income (loss) per common share-diluted | $ | 1.03 | $ | (0.04) | $ | - | $ | 0.01
﻿ |  |  |  |  |  |  |  |
﻿(1) Results for the first quarter of 2017 include pre-tax restructuring and impairment charges of $1,777.
﻿(2) Results for the third and fourth quarters of 2017 include pre-tax contingent liability charges of $2,850 and $1,450, respectively.
﻿(3) Results for the fourth quarter of 2017 include tax expense of $2,502 related to remeasurement of net deferred tax assets as a result of the Tax Act.
﻿(4) Results for the first quarter of 2016 include a $14,306 pre-tax gain on settlement of a postretirement benefit plan obligation, net of plaintiffs' attorneys' fees.
﻿(5) Results for the third and fourth quarters of 2016 include pre-tax restructuring and impairment charges of $1,531 and $730, respectively.
﻿

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1280-108306 + Details
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