Note 15 - Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Mar. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
2014
Operating Revenues	$	21,280	$	24,190	$	29,835	$	25,467
Operating Income		221		752		796		864
Net Income		139		456		455		417
Basic Earnings per share		0.06		0.19		0.19		0.17
Diluted Earnings per share		0.06		0.18		0.19		0.17
2013
Operating Revenues	$	24,488	$	21,162	$	26,703	$	30,711
Operating Income		654		351		986		737
Net Income		417		227		633		393
Basic Earnings per share		0.17		0.09		0.26		0.16
Diluted Earnings per share		0.17		0.09		0.26		0.16