Segment and Nonregulated Business Reporting

3 Months Ended

Mar. 31, 2012

Segment and Nonregulated Business Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

Segment and Nonregulated Business Reporting

SJW Corp. is a holding company with four subsidiaries: (i) San Jose Water Company, a water utility operation with both regulated and nonregulated businesses, (ii) SJW Land Company and its consolidated variable interest entity, 444 West Santa Clara Street, L.P., operate commercial building rentals, (iii) SJWTX, Inc. which is doing business as Canyon Lake Water Service Company, a regulated water utility located in Canyon Lake, Texas, and its consolidated nonregulated variable interest entity, Acequia Water Supply Corporation, and (iv) Texas Water Alliance Limited, a nonregulated water utility operation which is undertaking activities that are necessary to develop a water supply project in Texas. In accordance with FASB ASC Topic 280 – “Segment Reporting,” SJW Corp. has determined that it has two reportable business segments. The first segment is that of providing water utility and utility-related services to its customers through SJW Corp.’s subsidiaries, San Jose Water Company, Canyon Lake Water Service Company, and Texas Water Alliance Limited, together referred to as “Water Utility Services.” The second segment is property management and investment activity conducted by SJW Land Company, referred to as “Real Estate Services.”

SJW Corp.’s reportable segments have been determined based on information used by the chief operating decision maker. SJW Corp.’s chief operating decision maker is its President and Chief Executive Officer (“CEO”). The CEO reviews financial information presented on a consolidated basis that is accompanied by disaggregated information about operating revenue, net income and total assets, by subsidiaries.

The tables below set forth information relating to SJW Corp.’s reportable segments and distribution of regulated and nonregulated business activities within the reportable segments. Certain allocated assets, revenue and expenses have been included in the reportable segment amounts. Other business activity of SJW Corp. not included in the reportable segments is included in the “All Other” category.

	For Three Months Ended March 31, 2012
	Water Utility Services			Real Estate Services		All Other*		SJW Corp.
	Regulated		Non regulated	Non regulated		Non regulated		Regulated	Non regulated		Total
Operating revenue	$	48,824	1,074	1,251		—		48,824	2,325		51,149
Operating expense	42,350		748	846		480		42,350	2,074		44,424
Operating income (loss)	6,474		326	405		(480	)	6,474	251		6,725
Net income (loss)	1,454		160	(35	)	(470	)	1,454	(345	)	1,109
Depreciation and amortization	7,786		91	431		—		7,786	522		8,308
Senior note, mortgage and other interest expense	4,137		—	394		544		4,137	938		5,075
Income tax expense (benefit) in net income	1,046		125	(24	)	(348	)	1,046	(247	)	799
Assets	$	942,540	12,301	79,238		8,365		942,540	99,904		1,042,444

	For Three Months Ended March 31, 2011
	Water Utility Services			Real Estate Services		All Other*		SJW Corp.
	Regulated		Non regulated	Non regulated		Non regulated		Regulated	Non regulated		Total
Operating revenue	$	41,682	907	1,107		—		41,682	2,014		43,696
Operating expense	36,070		698	790		537		36,070	2,025		38,095
Operating income (loss)	5,612		209	317		(537	)	5,612	(11	)	5,601
Net income (loss)	860		99	(120	)	(229	)	860	(250	)	610
Depreciation and amortization	7,288		87	419		—		7,288	506		7,794
Senior note, mortgage and other interest expense	4,266		—	465		—		4,266	465		4,731
Income tax expense (benefit) in net income	618		82	(84	)	(183	)	618	(185	)	433
Assets	$	855,877	10,564	81,462		(225	)	855,877	91,801		947,678

* The “All Other” category includes the accounts of SJW Corp. on a stand-alone basis.