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Segment Information (Tables)
 6 Months Ended
Jun. 30, 2016
Segment Information [Abstract]  
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
The following table sets forth the revenue and operating results attributable to each reportable segment and includes a reconciliation of segment revenue to consolidated revenue and operating results to consolidated income (loss) before income tax expense:

(in thousands)
 
 
Three months ended
June 30,
  
Six months ended
June 30,
 
  
2016
  
2015
  
2016
  
2015
 
             
Revenue:
            
Performance Improvement Solutions
 
$
8,323
  
$
8,213
  
$
17,166
  
$
17,046
 
Nuclear Industry Training and Consulting
  
4,092
   
5,441
   
8,225
   
10,621
 
  
$
12,415
  
$
13,654
  
$
25,391
  
$
27,667
 
                 
Operating income (loss):
                
Performance Improvement Solutions
 
$
(432
)
 
$
(1,220
)
 
$
(474
)
 
$
(1,924
)
Nuclear Industry Training and Consulting
  
883
   
362
   
1,071
   
662
 
Gain on change in fair value of contingent consideration, net
  
(224
)
  
(513
)
  
(155
)
  
(433
)
                 
Operating income (loss)
 
$
227
  
$
(1,371
)
 
$
442
  
$
(1,695
)
                 
Interest income, net
  
13
   
21
   
40
   
48
 
Loss on derivative instruments, net
  
(17
)
  
(31
)
  
(135
)
  
(79
)
Other (expense) income, net
  
(4
)
  
(41
)
  
98
   
(80
)
Income (loss) before income taxes
 
$
219
  
$
(1,422
)
 
$
445
  
$
(1,806
)