Consolidated Statement Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balance at Mar. 31, 2011	$ 16	$ 33,799	$ (437)	$ 114,849	$ 148,227
Balance (in Shares) at Mar. 31, 2011	16,383,000
Net income (loss)				181	181
Pension liability adjustment, net of income tax			(280)		(280)
Exercise of stock options, net		20			20
Exercise of stock options, net (in Shares)	8,000				(7,500)
Amortization of deferred compensation		20			20
Tax effect from vesting/cancellation of stock under restricted management stock bonus plan and the exercise of options		51			51
Stock-based compensation		588			588
Balance at Mar. 31, 2012	16	34,478	(717)	115,030	148,807
Balance (in Shares) at Mar. 31, 2012	16,391,000
Net income (loss)				(54,856)	(54,856)
Pension liability adjustment, net of income tax			(56)		(56)
Amortization of deferred compensation		9			9
Stock-based compensation		1,005			1,005
Balance at Mar. 31, 2013	16	35,492	(773)	60,174	94,909
Balance (in Shares) at Mar. 31, 2013	16,391,000
Net income (loss)				4,192	4,192
Pension liability adjustment, net of income tax			122		122
Amortization of deferred compensation		20			20
Stock-based compensation		1,044			1,044
Balance at Mar. 31, 2014	$ 16	$ 36,556	$ (651)	$ 64,366	$ 100,287
Balance (in Shares) at Mar. 31, 2014	16,391,000