OTHER INVESTMENTS (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income From Other Investments [Line Items]
Partnerships owning real estate and related	$ 32,000	$ 24,000	$ 164,000	$ 127,000
Partnerships owning diversified businesses	27,000	37,000	42,000	179,000
Other (bank stocks)	2,000		34,000
Income from investment in 49% owned affiliate (T.G.I.F. Texas, Inc.)	12,000	8,000	51,000	42,000
Total net income from other investments	$ 73,000	$ 69,000	$ 291,000	$ 348,000