Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 10,380	$ 11,012
Restricted cash	693	1,078
Accounts receivable, net	1,273	921
Prepaid expenses and other current assets	3,550	4,335
Total current assets	15,896	17,346
Property and equipment, net	26,863	26,415
Capitalized Development Projects costs	566,797	202,438
Restricted cash and investments for Development Projects	136,431	26,384
Intangible assets	51,000	51,000
Cash collateral for deposit bond	35,000	15,000
Other assets	251	1,175
Total assets	832,238	339,758
Current liabilities:
Accounts payable	2,686	2,268
Current portion of long-term debt	14,588	0
Accrued Development Projects costs	71,712	41,933
Accrued expenses and other current liabilities	7,320	7,347
Total current liabilities	96,306	51,548
Long-term debt, net of current portion	455,148	0
Other long-term liabilities	9,463	8,644
Total liabilities	560,917	60,192
Stockholders’ equity:
Common stock	326	312
Additional paid-in capital	572,342	533,813
Accumulated other comprehensive loss	(315)	0
Accumulated deficit	(301,032)	(254,559)
Total stockholders’ equity	271,321	279,566
Total liabilities and stockholders’ equity	832,238	339,758
Series B
Stockholders’ equity:
Preferred stock	$ 0	$ 0