REVENUE RECOGNITION, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Contract with Customer, Asset and Liability [Abstract]
Total Deferred Revenue	$ 1,583	$ 1,514
Tariff Revenue [Member]
Contract with Customer, Asset and Liability [Abstract]
Contract Assets	3,156	2,144
Total Deferred Revenue	1,179	1,227
Tariff Deferred Revenue	1,200
Non-Tariff Revenue [Member]
Contract with Customer, Asset and Liability [Abstract]
Total Deferred Revenue	404	$ 287
Tariff Deferred Revenue	$ 300