Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 98,669	$ 62,452
Accounts receivable:
Trade	28,464	11,952
Taxes	6,343	20,048
Other, net	6,642	6,421
Inventories:
Concentrates, doré, and stockpiled ore	50,019	30,364
Materials and supplies	37,611	35,849
Prepaid taxes	107	107
Other current assets	7,301	11,931
Total current assets	235,156	179,124
Non-current investments	17,362	6,207
Non-current restricted cash and investments	1,053	1,025
Properties, plants, equipment and mineral interests, net	2,342,038	2,423,698
Operating lease right-of-use assets	11,928	16,381
Non-current deferred income taxes	3,408	3,537
Other non-current assets and deferred charges	4,205	7,336
Total assets	2,615,150	2,637,308
Current liabilities:
Accounts payable and accrued liabilities	55,315	57,716
Accrued payroll and related benefits	29,201	26,916
Accrued taxes	7,890	4,776
Current portion of finance leases	6,187	5,429
Current portion of operating leases	3,590	5,580
Current portion of accrued reclamation and closure costs	5,892	4,581
Accrued interest	4,935	5,804
Current derivatives liabilities	12,232	6,170
Other current liabilities	149	2
Total current liabilities	125,391	116,974
Non-current finance leases	7,883	7,214
Non-current operating leases	8,355	10,818
Accrued reclamation and closure costs	100,072	103,793
Long-term debt - notes	495,839	504,729
Non-current deferred tax liability	129,506	138,282
Non-current pension liability	48,303	56,219
Other non-current liabilities	6,153	6,856
Total liabilities	921,502	944,885
Commitments and contingencies (Notes 2, 4, 7, 9, and 11)
Preferred stock, 5,000,000 shares authorized: Series B preferred stock, $0.25 par value, 157,816 shares issued and outstanding, liquidation preference — $7,891	39	39
Common stock, $0.25 par value, 750,000,000 authorized shares; issued September 30, 2020 — 537,655,291 shares and December 31, 2019 — 529,182,994 shares	134,421	132,292
Capital surplus	1,998,322	1,973,700
Accumulated deficit	(375,527)	(353,331)
Accumulated other comprehensive loss	(40,111)	(37,310)
Less treasury stock, at cost; September 30, 2020 — 6,821,044 and December 31, 2019 — 6,287,271 shares issued and held in treasury	(23,496)	(22,967)
Total shareholders’ equity	1,693,648	1,692,423
Total liabilities and shareholders’ equity	$ 2,615,150	$ 2,637,308