XML 39 R22.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 6 - Business Segments and Sales of Products (Tables)
6 Months Ended
Jun. 30, 2018
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
Net sales to unaffiliated customers:
                               
Greens Creek
  $
74,605
    $
71,339
    $
140,455
    $
130,189
 
Lucky Friday
   
3,287
     
(187
)
   
8,264
     
19,823
 
Casa Berardi
   
56,103
     
43,822
     
111,651
     
85,534
 
San Sebastian
   
13,264
     
19,305
     
26,598
     
41,277
 
    $
147,259
    $
134,279
    $
286,968
    $
276,823
 
Income (loss) from operations:
                               
Greens Creek
  $
25,516
    $
15,418
    $
48,668
    $
29,532
 
Lucky Friday
   
(5,261
)
   
(8,212
)
   
(9,407
)
   
(4,332
)
Casa Berardi
   
1,014
     
(1,708
)
   
4,264
     
(3,953
)
San Sebastian
   
(361
)
   
11,892
     
4,656
     
25,346
 
Other
   
(17,152
)
   
(13,415
)
   
(32,476
)
   
(26,747
)
    $
3,756
    $
3,975
    $
15,705
    $
19,846
 
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
   
June 30, 2018
   
December 31, 2017
 
Identifiable assets:
               
Greens Creek
  $
678,862
    $
671,960
 
Lucky Friday
   
429,213
     
432,400
 
Casa Berardi
   
792,891
     
804,505
 
San Sebastian
   
68,812
     
62,198
 
Other
   
424,016
     
393,894
 
    $
2,393,794
    $
2,364,957
 
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
Greens Creek
   
51
%
   
53
%
   
49
%
   
47
%
Lucky Friday
   
2
%
   
%
   
3
%
   
7
%
Casa Berardi
   
38
%
   
33
%
   
39
%
   
31
%
San Sebastian
   
9
%
   
14
%
   
9
%
   
15
%
     
100
%
   
100
%
   
100
%
   
100
%
Revenue from External Customers by Products and Services [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
Silver
  $
38,425
    $
46,077
    $
73,647
    $
97,434
 
Gold
   
77,635
     
66,975
     
150,679
     
129,676
 
Lead
   
10,690
     
8,101
     
19,917
     
21,720
 
Zinc
   
27,614
     
20,500
     
57,723
     
50,365
 
Less: Smelter and refining charges
   
(7,105
)
   
(7,374
)
   
(14,998
)
   
(22,372
)
    $
147,259
    $
134,279
    $
286,968
    $
276,823
 
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
Doré and metals from doré
  $
75,526
    $
67,533
    $
149,018
    $
136,513
 
Lead concentrate
   
42,149
     
44,087
     
76,483
     
93,004
 
Zinc concentrate
   
22,579
     
16,344
     
48,231
     
40,562
 
Bulk concentrate
   
4,309
     
5,508
     
9,925
     
10,029
 
Total, excluding gains/losses on forward contracts
  $
144,563
    $
133,472
    $
283,657
    $
280,108
 
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
Canada
  $
94,524
    $
83,215
    $
183,192
    $
183,434
 
Korea
   
41,537
     
18,972
     
74,240
     
47,943
 
Japan
   
3,897
     
11,804
     
17,670
     
24,094
 
China
   
198
     
15,401
     
67
     
15,352
 
United States
   
4,407
     
4,080
     
8,488
     
9,285
 
Total, excluding gains/losses on forward contracts
  $
144,563
    $
133,472
    $
283,657
    $
280,108
 
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
   
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
CIBC
   
28
%
   
23
%
   
38
%
   
24
%
Scotia
   
18
%
   
23
%
   
10
%
   
22
%
Korea Zinc
   
28
%
   
14
%
   
26
%
   
17
%
Teck Metals Ltd.
   
17
%
   
15
%
   
11
%
   
15
%
Trafigura
   
%
   
12
%
   
%
   
6
%