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Summary of Unaudited Quarterly Results of Operations (Tables)
 12 Months Ended
Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]  
Summary of unaudited quarterly results
Unaudited quarterly results of operations for the years ended December 31, 2013 and 2012 are summarized below:
 
(Dollars in thousands, except per share data)
 
2013 Quarter Ended
 
Dec. 31
 
Sept. 30
 
June 30
 
Mar. 31
Net sales
$
65,738

 
$
68,235

 
$
68,317

 
$
67,213

Gross profit
39,627

 
41,220

 
40,634

 
39,814

 
 
 
 
 
 
 
 
Income (loss) from continuing operations (1)
$
(3,569
)
 
$
183

 
$
9

 
$
(3,604
)
Income from discontinued operations
674

 
418

 
388

 
381

Net income (loss)
$
(2,895
)
 
$
601

 
$
397

 
$
(3,223
)
 
 
 
 
 
 
 
 
Basic and diluted income (loss) per share of common stock:
 
 
 
 
 
 
 
Continuing operations
$
(0.41
)
 
$
0.02

 
$
—

 
$
(0.42
)
Discontinued operations (2)
0.08

 
0.05

 
0.05

 
0.05

Net income (loss) (2)
$
(0.33
)
 
$
0.07

 
$
0.05

 
$
(0.37
)
 
 
 
 
 
 
 
 
 
2012 Quarter Ended
 
Dec. 31
 
Sept. 30
 
June 30
 
Mar. 31
Net sales
$
64,505

 
$
67,863

 
$
69,830

 
$
71,364

Gross profit
38,900

 
42,495

 
35,726

 
40,297

 
 
 
 
 
 
 
 
Income (loss) from continuing operations (3)
$
1,236

 
$
(1,557
)
 
$
(61,538
)
 
$
(2,174
)
Income from discontinued operations
487

 
239

 
381

 
376

Net income (loss)
$
1,723

 
$
(1,318
)
 
$
(61,157
)
 
$
(1,798
)
 
 
 
 
 
 
 
 
Basic and diluted income (loss) per share of common stock:
 
 
 
 
 
 
 
Continuing operations
$
0.14

 
$
(0.18
)
 
$
(7.17
)
 
$
(0.25
)
Discontinued operations
0.06

 
0.03

 
0.05

 
0.04

Net income (loss)
$
0.20

 
$
(0.15
)
 
$
(7.12
)
 
$
(0.21
)

(1)
Income from operations for the three months ended December 31, 2013 includes a $2.9 million loss related to a sub-lease.

(2)
The sum of the quarterly earnings per share amounts do not equal the total annual earnings per share due to rounding and the uneven timing of earnings throughout the year compared to the weighted average shares outstanding.

(3)
Income from operations for the three months ended December 31, 2012 includes a $1.6 million gain from the sale of assets. Loss from continuing operations for the three months ended June 30, 2012 includes a $28.3 million charge for goodwill impairment, a $2.1 million gain on the sale of assets, $6.8 million of severance expenses and a $33.5 million increase in the deferred tax assets valuation allowance.