Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities
Net income	$ 1,131	$ 630
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,146	923
Amortization of premium/discount of marketable securities	202	232
Equity in earnings	(438)	(409)
Non-cash retirement plan expense	630	162
Deferred income taxes	3	0
Stock compensation expense	618	629
Changes in operating assets and liabilities:
Receivables, inventories and other assets, net	2,278	2,488
Current liabilities, net	(787)	(1,088)
Net cash provided by operating activities	4,783	3,567
Investing Activities
Maturities and sales of marketable securities	4,705	7,189
Funds invested in marketable securities	(2,379)	(8,320)
Property and equipment expenditures	(5,419)	(3,718)
Investment in unconsolidated joint ventures	(6,425)	(900)
Investments in long-term water assets	0	(121)
Other	453	10
Net cash used in investing activities	(9,065)	(5,860)
Financing Activities
Borrowings of short-term debt	4,500	0
Repayments of short-term debt	(4,500)	(9)
Repayments of long-term debt	(58)	0
Proceeds from exercise of stock options	0	211
Taxes on vested stock grants	(515)	(845)
Net cash provided by (used in) financing activities	(573)	(643)
Decrease in cash and cash equivalents	(4,855)	(2,936)
Cash and cash equivalents at beginning of year	9,031
Cash and cash equivalents at end of year	4,176	4,283
Supplemental cash flow information
Accrued capital expenditures included in current liabilities	$ 2,076	$ 2,170