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Industry Segments (Segment Information) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Jan. 03, 2015 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 31, 2015 | Jan. 03, 2015 | Dec. 28, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 35,566,000 | $ 38,083,000 | $ 50,163,000 | $ 51,648,000 | $ 48,569,000 | $ 48,452,000 | $ 52,688,000 | $ 49,796,000 | $ 175,460,438 | $ 199,504,628 | $ 196,751,175
Operating (loss) income |  |  |  |  |  |  |  |  | (7,425,000) | 19,641,000 | 7,006,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | (17,158,249) | 0 | 0
Business interruption proceeds |  |  |  |  |  |  |  |  | 1,246,024 | 0 | 0
Operating (loss) income |  |  |  |  |  |  |  |  | (13,151,720) | 16,039,083 | 3,499,525
Acquisition related costs |  |  |  |  |  |  |  |  | 499,761 | 301,715 | 264,186
Interest expense |  |  |  |  |  |  |  |  | 1,232,285 | 1,091,694 | 1,357,328
Change in fair value of interest rate swap |  |  |  |  |  |  |  |  | 41,580 | 425,543 | (740,832)
Specialty and Palmer earn-out adjustments |  |  |  |  |  |  |  |  | (4,897,448) | (3,476,197) | 0
Casualty insurance gain |  |  |  |  |  |  |  |  | (923,470) | 0 | 0
Gain on bargain purchase, net of taxes |  |  |  |  |  |  |  |  | 0 | 0 | (1,077,332)
Other income, net |  |  |  |  |  |  |  |  | (134,389) | (6,744) | (147,687)
(Loss) income before income taxes |  |  |  |  |  |  |  |  | (8,470,278) | 18,004,787 | 4,108,048
Identifiable assets | 149,021,417 |  |  |  | 187,849,230 |  |  |  | 149,021,417 | 187,849,230 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 6,755,000 | 5,191,000 | 4,672,000
Capital expenditures |  |  |  |  |  |  |  |  | 10,905,000 | 8,066,000 | 5,648,000
Metals Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 114,908,000 | 134,304,000 | 140,233,000
Operating (loss) income |  |  |  |  |  |  |  |  | 2,822,000 | 13,511,000 | 1,263,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | (17,158,249) | 0 | 0
Business interruption proceeds |  |  |  |  |  |  |  |  | 1,246,000 | 0 | 0
Identifiable assets | 112,591,000 |  |  |  | 145,558,000 |  |  |  | 112,591,000 | 145,558,000 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 5,173,000 | 4,078,000 | 3,809,000
Capital expenditures |  |  |  |  |  |  |  |  | 7,399,000 | 3,123,000 | 4,194,000
Specialty Chemicals Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 60,552,000 | 65,201,000 | 56,518,000
Operating (loss) income |  |  |  |  |  |  |  |  | 5,665,000 | 6,130,000 | 5,743,000
Goodwill, Impairment Loss |  |  |  |  |  |  |  |  | 0 |  |
Identifiable assets | 33,391,000 |  |  |  | 32,504,000 |  |  |  | 33,391,000 | 32,504,000 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,376,000 | 974,000 | 659,000
Capital expenditures |  |  |  |  |  |  |  |  | 3,439,000 | 4,913,000 | 1,397,000
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Less unallocated corporate expenses |  |  |  |  |  |  |  |  | 5,227,000 | 3,300,000 | 3,243,000
Operating (loss) income |  |  |  |  |  |  |  |  | (13,152,000) | 16,039,000 | 3,499,000
Acquisition related costs |  |  |  |  |  |  |  |  | 500,000 | 302,000 | 264,000
Interest expense |  |  |  |  |  |  |  |  | 1,232,000 | 1,092,000 | 1,357,000
Change in fair value of interest rate swap |  |  |  |  |  |  |  |  | 42,000 | 426,000 | (741,000)
Specialty and Palmer earn-out adjustments |  |  |  |  |  |  |  |  | (4,897,000) | (3,476,000) | 0
Casualty insurance gain |  |  |  |  |  |  |  |  | (923,000) | 0 | 0
Gain on bargain purchase, net of taxes |  |  |  |  |  |  |  |  | 0 | 0 | (1,077,000)
Other income, net |  |  |  |  |  |  |  |  | (136,000) | (8,000) | (148,000)
(Loss) income before income taxes |  |  |  |  |  |  |  |  | (8,470,000) | 18,005,000 | 4,108,000
Identifiable assets | $ 3,039,000 |  |  |  | $ 9,787,000 |  |  |  | 3,039,000 | 9,787,000 |
Depreciation and amortization |  |  |  |  |  |  |  |  | 206,000 | 139,000 | 204,000
Capital expenditures |  |  |  |  |  |  |  |  | 67,000 | 30,000 | 57,000
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 167,185,000 | 191,032,000 | 189,447,000
Elsewhere [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 8,275,000 | 8,473,000 | 7,304,000
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 175,460,000 | 199,505,000 | 196,751,000
Specialty Chemicals - Product Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 60,552,000 | 65,201,000 | 56,517,000
Stainless Steel Pipe - Product Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 77,850,000 | 101,035,000 | 106,874,000
Seamless Carbon Steel Pipe and Tube - Product Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 18,013,000 | 2,524,000 | 0
Liquid Storage Tanks and Separation Equipment - Product Group [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 19,045,000 | $ 30,745,000 | $ 33,360,000

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