| Schedule of Segment Reporting Information, by Segment |
Information for each segment is provided in the following tables (in thousands): | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2017 | | Potash | | Trio® | | Corporate | | Consolidated | Sales | | $ | 20,711 |
| | $ | 11,349 |
| | $ | — |
| | $ | 32,060 |
| Less: Freight costs | | 2,864 |
| | 3,296 |
| | — |
| | 6,160 |
| Warehousing and handling costs | | 1,173 |
| | 873 |
| | — |
| | 2,046 |
| Cost of goods sold | | 11,534 |
| | 7,861 |
| | — |
| | 19,395 |
| Lower-of-cost-or-market inventory
adjustments | | 113 |
| | 554 |
| | — |
| | 667 |
| Gross Margin (Deficit) | | $ | 5,027 |
| | $ | (1,235 | ) | | $ | — |
| | $ | 3,792 |
| Depreciation, depletion and amortization incurred1 | | $ | 6,567 |
| | $ | 1,687 |
| | $ | 16 |
| | $ | 8,270 |
| | | | | | | | | | Nine Months Ended September 30, 2017 | | Potash | | Trio® | | Corporate | | Consolidated | Sales | | $ | 75,745 |
| | $ | 48,557 |
| | $ | — |
| | $ | 124,302 |
| Less: Freight costs | | 9,401 |
| | 13,466 |
| | — |
| | 22,867 |
| Warehousing and handling costs | | 4,051 |
| | 2,962 |
| | — |
| | 7,013 |
| Cost of goods sold | | 50,776 |
| | 34,205 |
| | — |
| | 84,981 |
| Lower-of-cost-or-market inventory
adjustments | | 146 |
| | 4,662 |
| | — |
| | 4,808 |
| Gross Margin (Deficit) | | $ | 11,371 |
| | $ | (6,738 | ) | | $ | — |
| | $ | 4,633 |
| Depreciation, depletion and amortization incurred1 | | $ | 20,685 |
| | $ | 5,091 |
| | $ | 114 |
| | $ | 25,890 |
| | | | | | | | | | Three Months Ended September 30, 2016 | | Potash | | Trio® | | Corporate | | Consolidated | Sales | | $ | 35,357 |
| | $ | 8,286 |
| | $ | — |
| | $ | 43,643 |
| Less: Freight costs | | 6,722 |
| | 1,465 |
| | — |
| | 8,187 |
| Warehousing and handling costs | | 2,072 |
| | 544 |
| | — |
| | 2,616 |
| Cost of goods sold | | 29,027 |
| | 6,245 |
| | — |
| | 35,272 |
| Lower-of-cost-or-market inventory
adjustments | | 4,856 |
| | 336 |
| | — |
| | 5,192 |
| Gross Deficit | | $ | (7,320 | ) | | $ | (304 | ) | | $ | — |
| | $ | (7,624 | ) | Depreciation, depletion and amortization incurred1 | | $ | 8,090 |
| | $ | 597 |
| | $ | 69 |
| | $ | 8,756 |
| | | | | | | | | | Nine Months Ended September 30, 2016 | | Potash | | Trio® | | Corporate | | Consolidated | Sales | | $ | 128,248 |
| | $ | 40,512 |
| | $ | — |
| | $ | 168,760 |
| Less: Freight costs | | 20,156 |
| | 7,294 |
| | — |
| | 27,450 |
| Warehousing and handling costs | | 6,358 |
| | 1,460 |
| | — |
| | 7,818 |
| Cost of goods sold | | 108,816 |
| | 28,083 |
| | — |
| | 136,899 |
| Lower-of-cost-or-market inventory
adjustments | | 16,793 |
| | 336 |
| | — |
| | 17,129 |
| Costs associated with abnormal
production and other | | 650 |
| | 1,057 |
| | — |
| | 1,707 |
| Gross (Deficit) Margin | | $ | (24,525 | ) | | $ | 2,282 |
| | $ | — |
| | $ | (22,243 | ) | Depreciation, depletion and amortization incurred1 | | $ | 28,970 |
| | $ | 3,150 |
| | $ | 845 |
| | $ | 32,965 |
|
1 Depreciation, depletion and amortization incurred for potash and Trio® excludes depreciation, depletion and amortization amounts absorbed in or relieved from inventory. |