Long Term Water Assets - Volume of Water Assets (Details)	12 Months Ended
	Dec. 31, 2013 aft		Sep. 30, 2013	Dec. 31, 2012 aft
Banked water and water for future delivery
Transferable water with AVEK			1.5
Water Contracts	10,137			3,444
Water assets	48,383			40,770
Long Term Water Assets, Contractual Term	27 years
Long Term Water Assets, Contracts with Company	112,094			100,739
Long Term Water Assets, Contract Renewal Optional Term	44 years
AVEK
Banked water and water for future delivery
AVEK water bank	12,280			11,478
Company water bank	8,818			8,700
AVEK water for future delivery	2,362			2,362
Banked water and water for future delivery	23,460			22,540
Transferable water with AVEK	14,786	[1]		14,786	[1]
Wheeler Ridge Maricopa Water Storage District
Banked water and water for future delivery
Water Contracts	15,547			15,547
Tejon-Castac Water District
Banked water and water for future delivery
Banked water and water for future delivery	42,685			38,943
Water Contracts	5,479			5,479
Transferable water
Banked water and water for future delivery
Water assets	6,693		22,179

[1] Any transferable water with AVEK that is used by the Company or returned by AVEK to the Company will be returned at a 1.5 to 1 factor giving the Company use of a total of 22,179 feet.