Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income (loss)	$ 4,235	$ (1,821)	$ 757
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	5,424	5,689	5,657
Amortization of premium/discount of marketable securities	101	298	434
Equity in earnings of unconsolidated joint ventures, net	(3,834)	(4,227)	(7,098)
Non-cash retirement plan expense	335	469	1,046
Loss (gain) on sale of real estate/assets	94	45	(1,183)
Deferred income taxes	175	(94)	2,099
Stock compensation expense	3,248	3,552	4,585
Excess tax benefit of stock-based compensation	18	107	0
Distribution of earnings from unconsolidated joint ventures	4,800	7,200	4,500
Changes in operating assets and liabilities:
Receivables, inventories, prepaids and other assets, net	(2,888)	522	(2,711)
Current liabilities, net	2,646	(1,910)	(2,501)
Net cash provided by operating activities	14,354	9,830	5,585
Investing Activities
Maturities and sales of marketable securities	35,219	8,126	11,750
Purchases of marketable securities	(28,392)	(52,716)	(5,983)
Real estate and equipment expenditures	(22,580)	(21,709)	(26,380)
Reimbursement proceeds from Communities Facilities District	3,588	0	6,155
Proceeds from sale of real estate/assets	0	0	4,616
Investment in unconsolidated joint ventures	(52)	(310)	(2,000)
Distribution of equity from unconsolidated joint ventures	2,815	3,114	1,600
Investments in long-term water assets	(3,844)	(4,717)	0
Other	0	(2)	0
Net cash used in investing activities	(13,246)	(68,214)	(10,242)
Financing Activities
Borrowings of line of credit	0	13,300	20,700
Repayments of line of credit	0	(21,000)	(13,000)
Repayments of long-term debt	(4,046)	(3,908)	(815)
Net proceeds from rights offering	(166)	89,867	0
Taxes on vested stock grants	(1,095)	(1,026)	(2,900)
Net cash (used in)/provided by financing activities	(5,307)	77,233	3,985
(Decrease) increase in cash and cash equivalents	(4,199)	18,849	(672)
Cash and cash equivalents at beginning of year	20,107	1,258	1,930
Cash and cash equivalents at end of year	15,908	20,107	1,258
Supplemental cash flow information
Non cash capital contribution to unconsolidated joint venture	0	1,339	0
Accrued capital and water expenditures included in current liabilities	2,390	814	652
Capital expenditure financing arrangement	0	0	467
Taxes paid (net of refunds)	$ 0	$ (124)	$ 1,135