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Acquisition of New York Code and Design Academy (Details Textual) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended
Jan. 13, 2016
Apr. 30, 2016
Mar. 31, 2016
Mar. 31, 2015
Acquisition of New York Code and Design Academy (Textual)        
Payment of contingent consideration     $ 405 $ 300
Management's assessment     Key assumptions include a discount rate of 4.5% and expected future value of payments of $12.5 million, based on management's assessment that NYCDA will achieve its performance targets after the five-year measurement period.  
New York Code and Design Academy, Inc. ("NYCDA") [Member]        
Acquisition of New York Code and Design Academy (Textual)        
Cash paid up front $ 2,400      
Amount payable based on results of operations 12,500      
Total cash payments for the acquistion and the retention amount $ 25,000      
Business acquisition operating period 5 years      
Transaction costs $ 200      
Business combination contingent consideration description Pursuant to the Acquisition, $1.0 million of the Earnout may be accelerated upon receipt of one of the state regulatory permits.      
New York Code and Design Academy, Inc. ("NYCDA") [Member] | State regulatory permit [Member]        
Acquisition of New York Code and Design Academy (Textual)        
Contingent cash payments $ 5,000      
New York Code and Design Academy, Inc. ("NYCDA") [Member] | State regulatory permit one [Member]        
Acquisition of New York Code and Design Academy (Textual)        
Contingent cash payments 500      
New York Code and Design Academy, Inc. ("NYCDA") [Member] | Subsequent Event [Member]        
Acquisition of New York Code and Design Academy (Textual)        
Payment of contingent consideration   $ 6,000    
Two of NYCDA's founders [Member]        
Acquisition of New York Code and Design Academy (Textual)        
Cash paid up front $ 4,600      
Employment term 3 years