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Acquisitions (Tables) | 6 Months Ended
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Jun. 30, 2018
Business Combinations [Abstract] |
Schedule of Results of Operations Since Acquisition | Bristol Metals-Munhall's results of operations since acquisition are reflected in the Company's consolidated statements of operations as follows:
| Three Months Ended |  | Six Months Ended
| Jun 30, 2018 |  |  | Jun 30, 2017 |  |  | Jun 30, 2018 |  |  | Jun 30, 2017 |
Revenues | $ | 14,771,010 |  |  | $ | 7,299,734 |  |  | $ | 25,739,242 |  |  | $ | 8,411,926 |
Pre-tax income (loss) | (38,142 | ) |  | 211,703 |  |  | 1,019,497 |  |  | 390,896 |

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