Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Description of Business and Summary of Significant Accounting Policies [Abstract]

Schedule of company's revenue disaggregated by customer, commercial and non commercial

	Electricity		Natural Gas		Other		Total
	(in thousands)
For the year ended December 31, 2019
Non-Commercial Channel	$	232,511	$	33,979	$	—	$	266,490
Commercial Channel		30,580		5,947		—		36,527
Other		—		—		12,274		12,274
Total	$	263,091	$	39,926	$	12,274	$	315,291
For the year ended December 31, 2018
Non-Commercial Channel	$	217,019	$	43,383	$	—	$	260,402
Commercial Channel		10,864		3,177		—		14,041
Other		—		—		5,866		5,866
Total	$	227,883	$	46,560	$	5,866	$	280,309

	Electricity		Natural Gas		Other		Total
	(in thousands)
For the year ended December 31, 2019
Fixed rate	$	108,523	$	4,001	$	—	$	112,524
Variable rate		154,568		35,925		—		190,493
Other		—		—		12,274		12,274
Total	$	263,091	$	39,926	$	12,274	$	315,291
For the year ended December 31, 2018
Fixed rate	$	77,383	$	2,781	$	—	$	80,164
Variable rate		150,500		43,779		—		194,279
Other		—		—		5,866		5,866
Total	$	227,883	$	46,560	$	5,866	$	280,309

Schedule of recognized as contract liability

	December 31,
	2019		2018
		(in thousands)
Contract liability, beginning	$	1,137	$	205
Recognition of revenue included in the beginning of year contract liability		(635)		(205)
Additions during the period, net of revenue recognized during the period		12,924		1,137
Contract liability, end	$	13,426	$	1,137

Schedule of reconciliation of cash and restricted cash

	December 31,
	2019		2018
	(in thousands)
Cash and cash equivalents	$	31,242	$	41,601
Restricted cash—short-term included in other current assets		6,792		1,653
Restricted cash—long-term		520		943
Total cash, cash equivalents, and restricted cash	$	38,554	$	44,197

Schedule of inventory

	December 31,
	2019		2018
	(in thousands)
Natural gas	$	1,052	$	1,116
Renewable credits		14,940		8,654
Solar Panels:
Finished goods		424		40
Raw materials		216		83
Total solar panels inventory		640		123
Totals	$	16,632	$	9,893

Schedule of estimated useful life of property plant and equipment

	Years
Building and improvements	4 - 27
Machinery and equipment	2 - 9
Computer software and development	2 - 5
Computers and computer hardware	2 - 5
Office equipment and other	5 - 7

Schedule of exercise price of stock options

	Year ended December 31,
(in thousands)	2019		2018
Stock options		126		341

Schedule of antidilutive shares were excluded from the diluted earnings per share computations

	Year ended December 31,
	2019		2018
	(in thousands)
Basic weighted-average number of shares	$	26,607	$	25,154
Effect of dilutive securities
Stock options and warrants		718		130
Non-vested restricted Class B common stock		139		411
Diluted weighted-average number of shares	$	27,464	$	25,695

Schedule of percentage of consolidated revenues from customers by utility company and percentage of consolidated gross trade accounts receivable by utility company

	Year ended December 31,
	2019			2018
Con Edison		na	%		11	%

na – less than 10% of consolidated revenue in the period

Schedule of change in allowance for doubtful accounts

(in thousands)	Balance at beginning of period		Additions charged (reversals credited) to expense		Additions (deductions)		Balance at end of period
Year ended December 31, 2019
Reserves deducted from accounts receivable:
Allowance for doubtful accounts	$	2,003	$	658	$	(30)	$	2,631
Year ended December 31, 2018
Reserves deducted from accounts receivable:
Allowance for doubtful accounts	$	1,099	$	904	$	—	$	2,003