Note 10 - Earnings (Loss) Per Share (Detail) - Basic and diluted net earnings per share: (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Numerator:
Income (loss) before extraordinary item (in Dollars)	$ (55,503)	$ 1,825	$ (55,575)	$ 2,202
Extraordinary gain, net of tax expense (note 14) (in Dollars)				440
Net income (loss) for basic and diluted earnings per share (in Dollars)	$ (55,503)	$ 1,825	$ (55,575)	$ 2,642
Denominator:
Denominator for basic earnings (loss) per share - weighted average shares outstanding (in thousands) (in Shares)	16,391	16,391	16,391	16,391
Effect of dilutive securities:
Denominator for diluted earnings per share - adjusted weighted average shares outstanding (in thousands) (in Shares)	16,391	16,391	16,391	16,391
Basic
Income (loss) before extraordinary item	$ (3.39)	$ 0.11	$ (3.39)	$ 0.13
Extraordinary gain, net of tax expense				$ 0.03
Net income (loss)	$ (3.39)	$ 0.11	$ (3.39)	$ 0.16
Diluted
Income (loss) before extraordinary item	$ (3.39)	$ 0.11	$ (3.39)	$ 0.13
Extraordinary gain, net of tax expense				$ 0.03
Net income (loss)	$ (3.39)	$ 0.11	$ (3.39)	$ 0.16