ACQUISITIONS (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended	3 Months Ended	0 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2009	Dec. 31, 2013	Oct. 29, 2009	Dec. 31, 2009
Business Acquisition [Line Items]
Term of contract management agreement		40 years
Number of years until the contingent liability becomes payable		4 years
Number of trailing months of operating cash flow used to determine contingent liability		12 months
Fair value adjustment of contingent liability	$ 196,000	$ 0	$ (196,000)	$ 0
September 2009 Arizona Partnership [Member]
Business Acquisition [Line Items]
Cash paid for acquisition					350,000
Fair value of contingent liability	401,000				718,000
Number of years until the contingent liability becomes payable					4 years
Number of trailing months of operating cash flow used to determine contingent liability					12 months
Fair value adjustment of contingent liability	17,000
Nonoperating income	17,000					22,000
Conversion of contingent liability to accrued expense						201,000
Conversion of contingent liability to note payable						200,000
Term of note payable						5 years
Interest rate of note payable (in hundredths)			5.00%			5.00%
October 2009 Arizona Partnership [Member]
Business Acquisition [Line Items]
Cash paid for acquisition							700,000
Fair value of contingent liability	421,000						850,000
Number of years until the contingent liability becomes payable							4 years
Number of trailing months of operating cash flow used to determine contingent liability							12 months
Fair value adjustment of contingent liability	179,000
Nonoperating income	$ 179,000
Dental Practice Acquisition [Member]
Business Acquisition [Line Items]
Number of years until the contingent liability becomes payable								4 years
Number of trailing months of operating cash flow used to determine contingent liability								12 months