Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 134,018	$ 155,209
Accounts receivable:
Trade	30,127	13,490
Taxes	14,648	11,458
Other, net	16,786	16,401
Inventories:
Concentrates, doré, and stockpiled ore	29,199	22,441
Materials and supplies	23,619	23,101
Current deferred income taxes	15,268	$ 17,980
Current restricted cash	3,900
Other current assets	9,289	$ 9,453
Total current assets	276,854	269,533
Non-current investments	2,086	1,515
Non-current restricted cash and investments	999	999
Properties, plants, equipment and mineral interests, net	1,907,775	1,896,811
Non-current deferred income taxes	34,981	36,589
Reclamation insurance	(13,695)	(13,695)
Other non-current assets and deferred charges	2,783	2,783
Total assets	2,239,173	2,221,925
Current liabilities:
Accounts payable and accrued liabilities	56,657	51,277
Accrued payroll and related benefits	19,873	27,563
Accrued taxes	8,958	8,915
Current portion of capital leases	8,216	8,735
Current portion of accrued reclamation and closure costs	20,989	20,989
Current portion of debt	2,057	2,721
Other current liabilities	16,068	6,884
Total current liabilities	132,818	127,084
Capital leases	7,427	8,841
Accrued reclamation and closure costs	75,729	74,549
Long-term debt	500,531	500,199
Non-current deferred tax liability	126,009	119,623
Non-current pension liability	45,874	46,513
Other non-current liabilities	3,539	6,190
Total liabilities	$ 891,927	$ 882,999
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, 500,000,000 shares authorized; issued and outstanding 2016 — 381,520,569 shares and 2015 — 378,112,840 shares	96,215	95,219
Capital surplus	1,528,820	1,519,598
Accumulated deficit	(234,272)	(232,565)
Accumulated other comprehensive loss	(31,566)	(32,631)
Less treasury stock, at cost; 2016 - 3,037,154 and 2015 - 2,764,973 shares issued and held in treasury	(11,990)	(10,734)
Total stockholders’ equity	1,347,246	1,338,926
Total liabilities and stockholders’ equity	$ 2,239,173	$ 2,221,925