CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 78,618	$ 56,664
Restricted cash	1,006	1,004
Accounts receivable, net of allowance for doubtful accounts of $6,299 at June 30, 2020 and $4,797 at December 31, 2019	68,043	113,635
Accounts receivable—affiliates	4,148	2,032
Inventory	972	2,954
Fair value of derivative assets	312	464
Customer acquisition costs, net	10,382	8,649
Customer relationships, net	12,159	13,607
Deposits	6,086	6,806
Renewable energy credit asset	12,175	24,204
Other current assets	7,623	6,109
Total current assets	201,524	236,128
Property and equipment, net	2,779	3,267
Fair value of derivative assets	221	106
Customer acquisition costs, net	2,049	9,845
Customer relationships, net	11,729	17,767
Deferred tax assets	28,890	29,865
Goodwill	120,343	120,343
Other assets	4,477	5,647
Total assets	372,012	422,968
Current liabilities:
Accounts payable	31,979	48,245
Accounts payable—affiliates	717	1,009
Accrued liabilities	38,289	37,941
Renewable energy credit liability	18,696	33,120
Fair value of derivative liabilities	11,282	19,943
Other current liabilities	1,461	1,697
Total current liabilities	102,424	141,955
Long-term liabilities:
Fair value of derivative liabilities	408	495
Long-term portion of Senior Credit Facility	100,000	123,000
Other long-term liabilities	73	217
Total liabilities	202,905	265,667
Commitments and Contingencies
Series A Preferred Stock, par value $0.01 per share, 20,000,000 shares authorized, 3,707,256 shares issued and 3,567,543 shares outstanding at June 30, 2020 and 3,707,256 shares issued and 3,677,318 shares outstanding at December 31, 2019	87,288	90,015
Stockholders' equity:
Additional paid-in capital	53,409	51,842
Accumulated other comprehensive loss	(40)	(40)
Retained earnings	7,275	1,074
Treasury stock, at cost, 99,446 shares at June 30, 2020 and December 31, 2019	(2,011)	(2,011)
Total stockholders' equity	58,990	51,219
Non-controlling interest in Spark HoldCo, LLC	22,829	16,067
Total equity	81,819	67,286
Total liabilities, Series A Preferred Stock and Stockholders' equity	372,012	422,968
Class A Common Stock
Stockholders' equity:
Common Stock	148	145
Class B Common Stock
Stockholders' equity:
Common Stock	$ 209	$ 209