Business Segments (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Identifiable assets:
Total assets	$ 280,156	$ 244,434
Learning Solutions [Member]
Identifiable assets:
Total assets	139,744	108,111
Professional and Technical Services [Member]
Identifiable assets:
Total assets	64,292	62,975
Sandy Training and Marketing [Member]
Identifiable assets:
Total assets	21,812	24,250
Performance Readiness Solutions [Member]
Identifiable assets:
Total assets	26,500	27,472
Energy Services [Member]
Identifiable assets:
Total assets	$ 27,808	$ 21,626