Description of Business and Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	$ 266,490	$ 260,402
Commercial Channel	36,527	14,041
Other	12,274	5,866
Total	315,291	280,309
Electricity [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	232,511	217,019
Commercial Channel	30,580	10,864
Other
Total	263,091	227,883
Natural Gas [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel	33,979	43,383
Commercial Channel	5,947	3,177
Other
Total	39,926	46,560
Others [Member]
Disaggregation of Revenue [Line Items]
Non-Commercial Channel
Commercial Channel
Other	12,274	5,866
Total	$ 12,274	$ 5,866