Quarterly Financial Data Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

Selected quarterly financial data for the years ended December 31, 2012 and 2011 appears below (in thousands, except for per share data):

	First Quarter				Second Quarter				Third Quarter				Fourth Quarter
	2012		2011		2012		2011		2012		2011		2012		2011
Operating Revenues	$	18,540	$	15,989	$	21,348	$	17,359	$	24,461	$	20,628	$	19,489	$	15,426
Total Utility Operating Income	3,727		3,538		5,199		4,580		7,961		5,054		3,534		3,235
Net Income	1,910		2,268		4,163		3,470		5,974		3,734		1,593		1,828
Basic Earnings per Common Share	0.22		0.26		0.48		0.41		0.69		0.43		0.16		0.21
Diluted Earnings per Common Share	0.22		0.26		0.47		0.40		0.67		0.42		0.16		0.21