v3.7.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Reconciliation of net income to net cash provided by operating activities:    
Net loss $ (13,678) $ (18,427)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation, depletion and accretion [1] 9,323 14,368
Amortization of deferred financing costs 821 783
Stock-based compensation 989 1,046
Lower-of-cost-or-market inventory adjustments 3,824 9,007
Loss (gain) on disposal of assets 1,559 (15)
Allowance for parts inventory obsolescence 0 532
Other 3,006 258
Changes in operating assets and liabilities:    
Trade accounts receivable, net (8,776) (14,689)
Other receivables, net (399) (191)
Refundable income taxes (5) 40
Inventory, net 1,643 (7,745)
Prepaid expenses and other current assets 4,393 7,303
Accounts payable, accrued liabilities, and accrued employee compensation and benefits (65) 6,596
Other liabilities (819) 40
Net cash provided by (used in) operating activities 1,816 (1,094)
Cash Flows from Investing Activities:    
Additions to property, plant, equipment, and mineral properties (2,423) (6,018)
Proceeds from sale of property, plant, equipment, and mineral properties 5,553 0
Proceeds from sale of investments 1 23,634
Net cash provided by investing activities 3,131 17,616
Cash Flows from Financing Activities:    
Issuance of common stock, net of transaction expenses 57,468 0
Repayments of long-term debt (46,000) 0
Debt issuance costs 0 (1,235)
Employee tax withholding paid for restricted stock upon vesting (109) (172)
Net cash provided by (used in) financing activities 11,359 (1,407)
Net Change in Cash and Cash Equivalents 16,306 15,115
Cash and Cash Equivalents, beginning of period 4,464 9,307
Cash and Cash Equivalents, end of period 20,770 24,422
Net cash paid (refunded) during the period for:    
Interest 2,467 134
Income taxes 10 (38)
Accrued purchases for property, plant, equipment, and mineral properties $ 214 $ 2,004
[1] Depreciation, depletion and amortization incurred for potash and Trio® excludes depreciation, depletion and amortization amounts absorbed in or (relieved from) inventory.