Net Loss Per Share Reconciliation of the shares used for the basic loss per share (“EPS”) and diluted EPS calculations (Details)	3 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Basic EPS:
Weighted average number of shares of common stock outstanding and vested deferred stock units (“DSUs”)	12,062,000	[1]	11,207,000	[1]
Diluted EPS:
Effect of dilutive stock options and unvested DSUs	0		0
Total diluted EPS	12,062,000		11,207,000
Stock Options [Member]
Diluted EPS:
Total outstanding options not included in diluted EPS as they would be antidilutive	2,837,000		2,866,000
Performance Shares [Member]
Diluted EPS:
Performance and market-based grants not included in diluted EPS	239,000		270,000
Deferred Stock Unit (DSU) [Member]
Diluted EPS:
Vested stock units	170,112		125,372

[1] Includes 170,112 and 125,372 vested cumulative DSUs, respectively, for the three months ended June 30, 2013 and 2012 that will not be issued until the directors holding the DSUs retire from our Board of Directors.