Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Details Textual)

v3.7.0.1
Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Significant Accounting Policies (Textual)    
Recognized revenue $ 14,500 $ 20,200
Reserve of recognized revenue 1,300 1,300
Advertising expense $ 16,400 16,500
Deferred course expenses training events term 45 days  
Prepaid media costs 200
Share-based compensation $ 168 $ 63