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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total
--- | --- | --- | --- | --- | ---
Balances (in shares) at Dec. 31, 2016 | 9,601,011 |  |  |  |  |
Beginning balance at Dec. 31, 2016 | $ 96 | $ 118,680 | $ 91,920 | $ (1,483) | $ 209,213 |
Net income (loss) |  |  | (10,163) |  | (10,163) |
Pension liability adjustment |  |  |  | 57 | 57 |
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit |  |  |  | (19) | (19) |
Issuance of common stock under stock compensation plans (in shares) | 18,744 |  |  |  |  |
Issuance of common stock under stock compensation plans |  | (24) |  |  | (24) |
Share-based compensation expense |  | 1,200 |  |  | 1,200 |
Balances (in shares) at Dec. 31, 2017 | 9,619,755 |  |  |  |  |
Ending balance at Dec. 31, 2017 | $ 96 | 119,856 | 81,757 | (1,445) | 200,264 |
Net income (loss) |  |  | 20,312 |  | 20,312 | [1]
Pension liability adjustment |  |  |  | (115) | (115) |
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit |  |  |  | 24 | 24 |
Issuance of common stock under stock compensation plans (in shares) | 115,300 |  |  |  |  |
Issuance of common stock under stock compensation plans | $ 1 | (1,302) |  |  | (1,301) |
Share-based compensation expense |  | 281 |  |  | 281 |
Cumulative-effect adjustment at Dec. 31, 2017 |  |  | (875) |  | (875) |
Balances (in shares) at Dec. 31, 2018 | 9,735,055 |  |  |  |  |
Ending balance at Dec. 31, 2018 | $ 97 | 118,835 | 101,194 | (1,536) | 218,590 |
Net income (loss) |  |  | 27,902 |  | 27,902 | [2]
Pension liability adjustment |  |  |  | 16 | 16 |
Unrealized gain (loss) on cash flow hedges, net of tax expense/benefit |  |  |  | (59) | (59) |
Issuance of common stock under stock compensation plans (in shares) | 11,924 |  |  |  |  |
Issuance of common stock under stock compensation plans |  |  |  |  |  |
Share-based compensation expense |  | 1,709 |  |  | 1,709 |
Cumulative-effect adjustment at Dec. 31, 2018 |  |  | 235 | (235) |  |
Balances (in shares) at Dec. 31, 2019 | 9,746,979 |  |  |  |  |
Ending balance at Dec. 31, 2019 | $ 97 | $ 120,544 | $ 129,331 | $ (1,814) | $ 248,158 |
[1] | Net income for the third quarter of 2018 includes a preliminary bargain purchase gain of $21.9 million. Net income for the fourth quarter of 2018 includes a measurement period adjustment of $1.8 million to decrease the bargain purchase gain.
[2] | Net income for the third quarter of 2019 includes $2.3 million of proceeds related to a legal settlement involving certain pipe produced at the Company's former Houston, Texas and Bossier City, Louisiana facilities and gain on insurance proceeds of $0.4 million resulting from the fire at the Company's Saginaw, Texas facility. Net income for the fourth quarter of 2019 includes gain on insurance proceeds of $1.2 million resulting from the fire at the Company's Saginaw, Texas facility.

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