SEGMENT INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2015
Segment Reporting [Abstract]  
Schedule of financial results of reportable segments
Financial results for each reportable segment are as follows (in thousands):
 
Year Ended December 31, 2015
 
MMS
 
ATA
 
Inter-Segment
Eliminations
 
Total
Sales
$
250,854

 
$
65,128

 
$
(733
)
 
$
315,249

Depreciation and amortization
6,497

 
2,285

 
 

 
8,782

Segment income
7,365

 
3,372

 
 

 
10,737

Capital expenditures
3,186

 
1,009

 
 

 
4,195

Segment assets(1)
226,265

 
48,069

 
 

 
274,334

 
Year Ended December 31, 2014
 
MMS
 
ATA
 
Inter-Segment
Eliminations
 
Total
Sales
$
243,199

 
$
68,788

 
$
(354
)
 
$
311,633

Depreciation and amortization
6,952

 
2,545

 
 

 
9,497

Segment income
3,950

 
6,708

 
 

 
10,658

Capital expenditures
2,088

 
1,098

 
 

 
3,186

Segment assets(1)
238,462

 
51,838

 
 

 
290,300

 
Year Ended December 31, 2013
 
MMS
 
ATA
 
Inter-Segment
Eliminations
 
Total
Sales
$
278,377

 
$
51,553

 
$
(471
)
 
$
329,459

Depreciation and amortization
6,897

 
1,985

 
 

 
8,882

Segment income
16,338

 
5,689

 
 

 
22,027

Capital expenditures
2,603

 
1,268

 
 

 
3,871

Segment assets(1)
253,173

 
46,082

 
 

 
299,255

____________________
(1) 
Segment assets primarily consist of restricted cash, accounts receivable, inventories, prepaid and other assets, property, plant and equipment, and intangible assets. Unallocated assets primarily include, cash and cash equivalents, corporate property, plant and equipment, deferred income taxes, and other non-current assets.
Schedule of reconciliation of segment income to consolidated income from operations before income taxes
A reconciliation of segment income to consolidated (loss) income from operations before income taxes for the years ended December 31, 2015, 2014, and 2013 are as follows (in thousands):
 
Year Ended December 31,
 
2015
 
2014
 
2013
Segment income
$
10,737

 
$
10,658

 
$
22,027

Unallocated corporate expense
(5,800
)
 
(5,540
)
 
(4,563
)
Acquisition related inventory step-up charge
—

 
(86
)
 
(1,927
)
Acquisition related expenses
—

 
(178
)
 
(2,154
)
Impairment charges
—

 
(5,766
)
 
(6,239
)
Interest expense, net
(499
)
 
(678
)
 
(1,064
)
Other unallocated income (expense)
—

 
465

 
(148
)
Income (loss) from continuing operations before income taxes
$
4,438

 
$
(1,125
)
 
$
5,932
Schedule of reconciliation of segment assets to consolidated total assets
A reconciliation of segment assets to consolidated total assets follows (in thousands):
 
December 31,
2015
 
December 31,
2014
 
December 31,
2013
Total segment assets
$
274,334

 
$
290,300

 
$
299,255

Unallocated assets
36,966

 
21,020

 
44,928

Total assets
$
311,300

 
$
311,320

 
$
344,183
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Information concerning the principal geographic areas is follows (in thousands):
 
2015
 
2014
 
2013
 
Sales
 
Long-lived
Assets (1)
 
Sales
 
Long-lived
Assets (1)
 
Sales
 
Long-lived
Assets (1)
North America
 

 
 

 
 

 
 

 
 

 
 

United States
$
103,650

 
$
37,607

 
$
94,420

 
$
39,656

 
$
105,764

 
$
49,270

Other
4,820

 
—

 
6,474

 
—

 
3,693

 
—

Total North America
108,470

 
37,607

 
100,894

 
39,656

 
109,457

 
49,270

Europe
 

 
 

 
 

 
 

 
 

 
 

England
12,780

 
555

 
13,848

 
604

 
21,090

 
645

Germany
34,830

 
1,388

 
46,543

 
1,741

 
40,277

 
1,943

Switzerland
7,613

 
30,322

 
6,834

 
31,524

 
6,063

 
37,055

Other
42,046

 
74

 
35,838

 
107

 
32,696

 
143

Total Europe
97,269

 
32,339

 
103,063

 
33,976

 
100,126

 
39,786

Asia
 

 
 

 
 

 
 

 
 

 
 

China
92,727

 
10,515

 
88,933

 
11,543

 
96,532

 
12,468

Taiwan
3,772

 
13,453

 
4,296

 
14,603

 
4,541

 
15,197

Other
13,011

 
2,749

 
14,447

 
3,011

 
18,803

 
—

Total Asia
109,510

 
26,717

 
107,676

 
29,157

 
119,876

 
27,665

Consolidated Total
$
315,249

 
$
96,663

 
$
311,633

 
$
102,789

 
$
329,459

 
$
116,721

____________________ 
(1) 
Long-lived assets consist of property, plant and equipment, goodwill, and other intangible assets.