Net Income (Loss) Per Share Reconciliation of the shares used for the basic earnings (loss) per share (“EPS”) and diluted EPS calculations (Details)	3 Months Ended				9 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
Basic EPS:
Weighted average number of shares of common stock outstanding and vested deferred stock units (“DSUs”) (in shares)	11,996,000	[1]	11,102,000	[1]	11,634,000	[1]	11,205,000	[1]
Diluted EPS:
Effect of dilutive stock options and unvested DSUs (in shares)	0		0		0		0
Total diluted EPS (in shares)	11,996,000		11,102,000		11,634,000		11,205,000
Stock Options [Member]
Diluted EPS:
Total outstanding options not included in diluted EPS as they would be antidilutive (in shares)	2,851,000		2,078,000		2,851,000		2,078,000
Performance Shares [Member]
Diluted EPS:
Performance-based grants not included in diluted EPS (in shares)	270,000		318,000		270,000		318,000
Deferred Stock Unit (DSU) [Member]
Diluted EPS:
Vested stock units (in shares)	151,554		96,332		138,838		83,174

[1] Includes 151,554 and 96,332 vested cumulative DSUs, respectively, for the three months ended December 31, 2012 and 2011 and 138,838 and 83,174 vested cumulative DSUs, respectively, for the nine months ended December 31, 2012 and 2011 that will not be issued until the directors holding the DSUs retire from our Board of Directors.