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Summarized Quarterly Results of Operations (Notes)
 12 Months Ended
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]  
Summarized Quarterly Results of Operations
Summarized Quarterly Results of Operations (Unaudited)

Thousands of Dollars, Except Per Share Data
Quarter Ended 2014
 
March-31
 
June-30
 
September-30
 
December-31
 
Total
Net Sales
 
$
150,485

 
$
152,784

 
$
162,109

 
$
158,271

 
$
623,649

Gross Profit
 
42,071

 
42,532

 
39,961

 
36,715

 
161,279

Net income (loss) from continuing operations(1)
 
4,763

 
6,327

 
(3,618
)
 
$
1,489

 
$
8,961

Income (loss) from discontinued operations, net(2)
 
(4,083
)
 
$
(578
)
 
$
875

 
(13,856
)
 
$
(17,642
)
Net income (loss)(1)
 
680

 
5,749

 
(2,743
)
 
$
(12,367
)
 
$
(8,681
)
Income (loss) per common share from continuing operations:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
0.14

 
$
0.20

 
$
(0.11
)
 
$
0.05

 
$
0.28

Diluted*
 
$
0.14

 
$
0.19

 
$
(0.11
)
 
$
0.05

 
$
0.27

Income (loss) per common share from discontinued operations:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
(0.12
)
 
$
(0.02
)
 
$
0.02

 
$
(0.44
)
 
$
(0.55
)
Diluted*
 
$
(0.12
)
 
$
(0.02
)
 
$
0.02

 
$
(0.44
)
 
$
(0.54
)
Net income (loss) per share:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
0.02

 
$
0.18

 
$
(0.09
)
 
$
(0.39
)
 
$
(0.27
)
Diluted*
 
$
0.02

 
$
0.17

 
$
(0.09
)
 
$
(0.39
)
 
$
(0.27
)
 
 
 
 
 
 
 
 
 
 
 
Quarter Ended 2013(3)
 
March-31
 
June-30
 
September-30
 
December-31
 
Total
Net Sales
 
$
144,944

 
$
153,623

 
$
141,442

 
$
144,724

 
$
584,733

Gross Profit
 
42,085

 
45,008

 
42,518

 
39,943

 
169,554

Net income from continuing operations
 
5,796

 
7,405

 
6,859

 
6,382

 
26,442

Income (loss) from discontinued operations, net
 
2,087

 
907

 
(371
)
 
(3,063
)
 
(440
)
Net income
 
7,883

 
8,312

 
6,488

 
3,319

 
26,002

Income per common share from continuing operations:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
0.18

 
$
0.22

 
$
0.20

 
$
0.19

 
$
0.78

Diluted*
 
$
0.17

 
$
0.22

 
$
0.20

 
$
0.19

 
$
0.77

Income (loss) per common share from discontinued operations:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
0.06

 
$
0.03

 
$
(0.01
)
 
$
(0.09
)
 
$
(0.01
)
Diluted*
 
$
0.06

 
$
0.03

 
$
(0.01
)
 
$
(0.09
)
 
$
(0.01
)
Net income (loss) per share:
 
 
 
 
 
 
 
 
 
 
Basic*
 
$
0.24

 
$
0.25

 
$
0.19

 
$
0.10

 
$
0.77

Diluted*
 
$
0.23

 
$
0.25

 
$
0.19

 
$
0.10

 
$
0.76