v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash flows from operating activities    
Net (loss) income $ (842) $ 203
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:    
Depreciation, amortization, depletion and accretion 2,570 2,181
Stock-based compensation expense 891 736
Operating lease expense 686 541
Amortization of debt discount and debt issuance costs 98 6
Loss on sale of long-term assets, net 0 145
Other non-cash items, net (73) (157)
Changes in operating assets and liabilities:    
Receivables (972) (492)
Prepaid expenses and other assets 798 (113)
Inventories (3,332) (2,338)
Other long-term assets, net 501 (1,801)
Accounts payable and accrued expenses 1,726 (4,494)
Other current liabilities (1,122) (907)
Operating lease liabilities (776) 826
Other long-term liabilities (89) (139)
Net cash provided by (used in) operating activities 64 (5,803)
Cash flows from investing activities    
Acquisition of property, plant, equipment and intangible assets, net (740) (3,710)
Acquisition of mine development costs (92) (43)
Distributions from equity method investee in excess of cumulative earnings 78 155
Net cash used in investing activities (754) (3,598)
Cash flows from financing activities    
Borrowings on revolving credit facility 32,439 30,700
Repayments of revolving credit facility (30,481) (28,344)
Repurchase of common stock to satisfy tax withholdings (200) (42)
Principal payments on notes payable (196) (144)
Principal payments on finance lease obligations (56) (201)
Net cash provided by financing activities 1,506 1,969
Increase (decrease) in Cash and Restricted Cash 816 (7,432)
Cash and Restricted Cash, beginning of period 15,040 22,235
Cash and Restricted Cash, end of period 15,856 14,803
Supplemental disclosure of non-cash investing and financing activities:    
Change in accrued purchases for property and equipment $ 112 $ 959