GOODWILL AND OTHER INTANGIBLES (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Changes in Carrying Amount of Goodwill [Abstract]              
Gross Goodwill Balance         $ 108,417 $ 115,872 $ 117,176
Accumulated impairment losses         (93,881) (93,665) (54,711)
Net Goodwill Balance         14,536 22,207 62,465
Asset held for sale [1]   $ (7,455) $ (1,304)        
Goodwill impairment   (216) (38,954) [2]        
Finite-Lived Intangible Assets [Line Items]              
Impairment $ (500)            
Assets held for sale [1]   (1,454)          
Amortization   100 200 $ 400      
Assets held for sale [1]   (378)          
Net carrying amount at end of the period   50          
Intangible Assets (Excluding Goodwill) [Abstract]              
Gross carrying amount, Total   1,924 3,005        
Impairment [3]     (1,081)        
Gross carrying amount, Total   470 1,924 3,005      
Accumulated amortization, Total   733 1,124        
Amortization   65 164        
Impairment [3]     (555)        
Accumulated amortization, Total   420 733 1,124      
Net carrying amount         50 1,191  
Impairment charges included in discontinued operation     38,800        
Amortization of intangible assets   100 200 400      
Estimated future amortization expense [Abstract]              
2015         18    
2016         16    
2017         16    
Net carrying amount   50     50    
Indefinite Trade Name [Member]              
Indefinite-lived Intangible Assets [Line Items]              
Gross carrying amount, beginning balance   0 180        
Impairment [3]     (180)        
Gross carrying amount, ending balance     0 180      
Accumulated amortization, beginning balance   0 0        
Amortization     0        
Impairment [3]     0        
Accumulated amortization, ending balance     0 0      
Net carrying amount at end of the period   0 180 180   0 180
Accreditation [Member]              
Indefinite-lived Intangible Assets [Line Items]              
Gross carrying amount, beginning balance   1,064 1,166        
Assets held for sale [1]   (1,064)          
Impairment [3]     (102)        
Gross carrying amount, ending balance   0 1,064 1,166      
Accumulated amortization, beginning balance   0 0        
Amortization   0 0        
Assets held for sale [1]   0          
Impairment [3]     0        
Accumulated amortization, ending balance   0 0 0      
Net carrying amount at end of the period   1,064 1,166 1,166 0 1,064 $ 1,166
Indefinite Trade Name [Member]              
Finite-Lived Intangible Assets [Line Items]              
Gross carrying amount, beginning balance   310 335        
Impairment [3]     (25)        
Assets held for sale [1]   0          
Gross carrying amount, ending balance   310 310 335      
Accumulated amortization, beginning balance   264 228        
Impairment [3]     (12)        
Amortization   44 48        
Assets held for sale [1]   0          
Accumulated amortization, ending balance   308 264 228      
Net carrying amount at end of the period   $ 2 $ 46        
Weighted average amortization period   7 years 7 years        
Intangible Assets (Excluding Goodwill) [Abstract]              
Amortization of intangible assets   $ 44 $ 48        
Estimated future amortization expense [Abstract]              
Net carrying amount   2 46   2 46  
Curriculum [Member]              
Finite-Lived Intangible Assets [Line Items]              
Gross carrying amount, beginning balance   550 1,124        
Impairment [3]     (574)        
Assets held for sale [1]   (390)          
Gross carrying amount, ending balance   160 550 1,124      
Accumulated amortization, beginning balance   469 828        
Impairment [3]     (448)        
Amortization   21 89        
Assets held for sale [1]   (378)          
Accumulated amortization, ending balance   112 469 828      
Net carrying amount at end of the period   $ 48 $ 81        
Weighted average amortization period   10 years 10 years        
Intangible Assets (Excluding Goodwill) [Abstract]              
Amortization of intangible assets   $ 21 $ 89        
Estimated future amortization expense [Abstract]              
Net carrying amount   48 81   $ 48 81  
Non-compete [Member]              
Finite-Lived Intangible Assets [Line Items]              
Gross carrying amount, beginning balance   0 200        
Impairment [3]     (200)        
Gross carrying amount, ending balance     0 200      
Accumulated amortization, beginning balance   $ 0 68        
Impairment [3]     (95)        
Amortization     27        
Accumulated amortization, ending balance     0 $ 68      
Net carrying amount at end of the period     $ 0        
Weighted average amortization period     3 years        
Intangible Assets (Excluding Goodwill) [Abstract]              
Amortization of intangible assets     $ 27        
Estimated future amortization expense [Abstract]              
Net carrying amount     $ 0     $ 0  
[1] Refer to Note 6 for more information on assets held for sale.
[2] $38.8 million included in discontinued operations in the year ended December 31, 2014.
[3] Refer to Note 1 for more information related to the impairment.