Condensed Consolidated Balance Sheets - Unaudited - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 9,491	$ 9,388
Real estate and tangible water assets, net	39,374	39,374
Intangible assets	120,070	120,445
Right of use assets, net	358	396
Deferred income tax asset	9,158	9,340
Other assets	1,526	1,503
Total assets	179,977	180,446
Liabilities and equity
Lease liabilities	358	396
Other liabilities	1,332	1,516
Accounts payable and accrued expenses	430	264
Total liabilities	2,120	2,176
Commitments and contingencies (Note 4)
Preferred stock, $0.001 par value; authorized 10,000 shares, none issued
Common stock, $0.001 par value; authorized 100,000 shares, 18,482 issued and 18,476 outstanding at March 31, 2021, and 18,586 issued and 18,583 outstanding at December 31, 2020	18	19
Additional paid-in capital	331,373	332,290
Accumulated deficit	(153,477)	(154,009)
Treasury stock, at cost (common shares:6 at March 31, 2021 and 3 at December 31, 2020)	(57)	(30)
Total shareholders’ equity	177,857	178,270
Total liabilities and shareholders’ equity	$ 179,977	$ 180,446