Table:
|  |  | Fiscal Years Ended March 31, |  |
| --- | --- | --- | --- |
|  | 2019 | 2018 | 2017 |
| Net income (GAAP) (1) | $206,587 | $254,127 | $47,157 |
| Non-GAAP adjustments: |  |  |  |
| Equity (income) loss from equity method investments | 3,304 | (76,192) | (41,643) |
| Acquisition (gain) loss | — | (130,880) | — |
| Change in value of TOKIN options | — | — | (10,700) |
| (Gain) loss on write down and disposal of long-lived assets | 1,660 | (992) | 10,671 |
| Restructuring charges (2) | 8,779 | 14,843 | 5,404 |
| R&D grant reimbursements and grant income | (4,559) | — | — |
| ERP integration costs/IT transition costs | 8,813 | 80 | 7,045 |
| Stock-based compensation | 12,866 | 7,657 | 4,720 |
| Legal expenses/fines related to antitrust class actions | 11,896 | 16,636 | 2,640 |
| Net foreign exchange (gain) loss | (7,230) | 13,145 | (3,758) |
| TOKIN investment-related expenses | — | — | 1,101 |
| Plant start-up costs (2) | (927) | 929 | 427 |
| Amortization included in interest expense | 1,872 | 2,467 | 761 |
| Income tax effect of non-GAAP adjustments | (50,012) | (30) | (741) |
| Loss on early extinguishment of debt | 15,946 | 486 | — |
| Adjusted net income (non-GAAP) (1) | $208,995 | $102,276 | $23,084 |
Paragraphs:
The following table provides a reconciliation from U.S. GAAP Net income to non-GAAP Adjusted net income (amounts in thousands):
(1) Fiscal years ending March 31, 2018 and 2017 adjusted due to the adoption of ASC 606.
(2) $0.9 million in costs incurred during fiscal year 2018 related to the relocation of the Company's tantalum powder facility equipment from Carson City, Nevada to its existing Matamoros, Mexico plant were reclassified from “Plant start-up costs” to “Restructuring charges” during fiscal year 2019.
Question:
What were the restructuring charges in 2017?
Answer: 5,404