Business Segments (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting Information [Line Items]

Reconciliation of Revenue 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 before income tax expense (in thousands):

	Years ended December 31,
	2013		2012		2011
Revenue:
Learning Solutions	$	189,899	$	158,118	$	126,177
Professional & Technical Services		72,577		82,447		83,551
Sandy Training & Marketing		70,699		70,243		54,604
Performance Readiness Solutions		53,882		55,794		40,079
Energy Services		49,632		34,970		28,756
	$	436,689	$	401,572	$	333,167
Operating income:
Learning Solutions	$	15,210	$	15,927	$	8,938
Professional & Technical Services		5,810		6,868		8,390
Sandy Training & Marketing		4,672		4,897		3,018
Performance Readiness Solutions		2,688		2,548		601
Energy Services		8,296		6,231		5,438
Gain on reversal of deferred rent liability		—		—		1,041
Gain (loss) on change in fair value of    contingent consideration, net		1,676		(789)		517
Operating income		38,352		35,682		27,943
Interest expense		(366)		(269)		(209)
Other income		502		389		657
Income before income tax expense	$	38,488	$	35,802	$	28,391

Additional Information Relating To Business Segments [Table Text Block]

Additional information relating to our business segments is as follows (in thousands):

	December 31,
	2013		2012
Identifiable assets:
Learning Solutions	$	139,744	$	108,111
Professional & Technical Services		64,292		62,975
Sandy Training & Marketing		21,812		24,250
Performance Readiness Solutions		26,500		27,472
Energy Services		27,808		21,626
Total assets	$	280,156	$	244,434

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

Corporate and other assets which consist primarily of cash and cash equivalents, other assets, and deferred tax assets and liabilities are allocated to the segments based on their respective percentage of consolidated revenues.

	Years ended December 31,
	2013		2012		2011
Additions to property, plant and equipment:
Learning Solutions	$	2,788	$	1,149	$	1,293
Professional & Technical Services		233		84		296
Sandy Training & Marketing		11		38		6
Performance Readiness Solutions		553		61		161
Energy Services		352		273		643
Corporate and other		2,777		931		1,576
	$	6,714	$	2,536	$	3,975
Depreciation and amortization:
Learning Solutions	$	4,990	$	3,411	$	2,173
Professional & Technical Services		715		668		734
Sandy Training & Marketing		427		428		424
Performance Readiness Solutions		778		1,102		871
Energy Services		393		511		435
Corporate and other		1,314		1,851		1,550
	$	8,617	$	7,971	$	6,187

Revenue [Member]

Segment Reporting Information [Line Items]

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

Information about our revenue in different geographic regions, which are attributable to our wholly owned subsidiaries located in the United Kingdom, Canada, Netherlands, Denmark, Germany, France, Mexico, Colombia, Singapore, China and India is as follows (in thousands):

	Years ended December 31,
	2013		2012		2011
United States	$	347,251	$	323,867	$	274,010
United Kingdom		65,578		61,102		48,151
Other		23,860		16,603		11,006
	$	436,689	$	401,572	$	333,167

Assets [Member]

Segment Reporting Information [Line Items]

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

Information about our total assets in different geographic regions is as follows (in thousands):

	December 31,
	2013		2012
United States	$	194,285	$	188,596
United Kingdom		56,481		40,163
Other		29,390		15,675
	$	280,156	$	244,434