Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 16,235	$ 12,558
Accounts receivable	59	38
Prepaid expenses and other current assets	652	408
Total current assets	16,946	13,004
Property, plant, equipment and water programs, net	46,923	46,619
Long-term deposit/prepaid expenses	2,000	2,000
Goodwill	3,813	3,813
Other assets	4,247	3,873
Total assets	73,929	69,309
Current liabilities:
Accounts payable	1,038	225
Accrued liabilities	1,053	2,070
Current portion of long-term debt	60	59
Warrant derivative liabilities		865
Other liabilities	965	923
Total current liabilities	3,116	4,142
Long-term debt, net	136,716	136,246
Long-term lease obligations	48	14,411
Deferred revenue	750	750
Other long-term liabilities	48
Total liabilities	155,347	155,549
Stockholders’ deficit:
Common stock - $.01 par value; 70,000,000 shares authorized at March 31, 2019 and December 31, 2018; shares issued and outstanding – 25,940,052 at March 31, 2019 and 24,654,911 at December 31, 2018	259	247
Additional paid-in capital	397,622	383,521
Accumulated deficit	(479,299)	(470,008)
Total stockholders’ deficit	(81,418)	(86,240)
Total liabilities and stockholders’ deficit	$ 73,929	$ 69,309