Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 15,682,000	$ 12,558,000
Accounts receivable	49,000	38,000
Prepaid expenses and other	386,000	408,000
Total current assets	16,117,000	13,004,000
Property, plant, equipment and water programs, net	49,947,000	46,619,000
Long-term deposit/prepaid expenses	2,000,000	2,000,000
Equity-method investments	729,000
Goodwill	3,813,000	3,813,000
Other assets	4,118,000	3,873,000
Total assets	76,724,000	69,309,000
Current liabilities:
Accounts payable	194,000	225,000
Accrued liabilities	4,536,000	2,070,000
Current portion of long-term debt	31,000	59,000
Warrant liabilities		865,000
Other liabilities	44,000	923,000
Total current liabilities	4,805,000	4,142,000
Long-term debt	137,565,000	136,246,000
Long-term lease obligations with related party, net	15,707,000	14,411,000
Deferred revenue	750,000	750,000
Other long-term liabilities	15,000
Total liabilities	158,842,000	155,549,000
Commitments and contingencies (Note 11)
Stockholders' deficit:
Common stock - $0.01 par value; 70,000,000 shares authorized; shares issued and outstanding: 28,480,567 at December 31, 2019, and 24,654,911 at December 31, 2018	285,000	247,000
Additional paid-in capital	419,194,000	383,521,000
Accumulated deficit	(501,597,000)	(470,008,000)
Total stockholders' deficit	(82,118,000)	(86,240,000)
Total liabilities and stockholders' deficit	$ 76,724,000	$ 69,309,000