REVENUE RECOGNITION, Contract Assets and Contract Liabilities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Contract with Customer, Asset and Liability [Abstract]
Total Accounts Receivable	$ 5,594,000	$ 6,034,000
Total Deferred Revenue	1,200,000	1,256,000
Regulated Revenue [Member]
Contract with Customer, Asset and Liability [Abstract]
Total Accounts Receivable	5,174,000	5,631,000
Contract Assets	2,211,000	2,397,000
Total Deferred Revenue	1,001,000	1,053,000
Refund Liability	748,000	0
Deferred Revenue	1,100,000
Non-Regulated Revenue [Member]
Contract with Customer, Asset and Liability [Abstract]
Total Accounts Receivable	420,000	403,000
Total Deferred Revenue	199,000	$ 203,000
Deferred Revenue	$ 160,000