SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)				3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 20, 2018 USD ($)	Jul. 09, 2018 USD ($)	Aug. 14, 2017 USD ($)	Sep. 30, 2018 USD ($) State	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) School State Campus Segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) Population	Apr. 28, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Activities [Abstract]
Number of schools | School						23
Number of states in which schools operate across the United States | State				14		14
Number of campuses treated as destination schools | Campus						5
Number of reportable segments | Segment						3
Number of campuses operating under HOPS | Campus						18
Number of campuses closed under HOPS | Campus						7
Number of additional campuses to be closed | Campus						1
Number of campuses remaining under HOPS | Campus						11
Liquidity [Abstract]
Gain on sale of property				$ (427,000)	$ 1,530,000	$ (537,000)	$ 1,619,000
Revenues				70,078,000	67,308,000	193,087,000	194,452,000
Net loss				(600,000)	(1,490,000)	(11,578,000)	(19,190,000)
Operating costs expenses				70,002,000	68,039,000	202,797,000	206,942,000
Cash and cash equivalents				18,003,000	14,466,000	18,003,000	14,466,000	$ 54,554,000		$ 47,715,000
Restricted cash				7,800,000		7,800,000
Income Taxes [Abstract]
Interest and penalties expense				$ 0	$ 0	$ 0	$ 0
West Palm Beach Property [Member]
Liquidity [Abstract]
Cash purchase price			$ 15,800,000
Gain on sale of property			1,500,000
Short term loan									$ 8,000,000
Repayment of term loan			$ 8,000,000
Mangonia Park Property [Member]
Liquidity [Abstract]
Cash purchase price		$ 2,550,000
Real estate brokerage fee percentage		5.00%
Lincoln College of New England [Member]
Liquidity [Abstract]
Revenues								8,400,000
Net loss								$ 1,600,000
Population | Population								397
Lease termination costs	$ 2,000,000
Severance payment	700,000
Lincoln College of New England [Member] | Maximum [Member]
Liquidity [Abstract]
Operating costs expenses	4,500,000
Lincoln College of New England [Member] | Minimum [Member]
Liquidity [Abstract]
Operating costs expenses	$ 3,500,000