|
Stockholders' Equity (Details 6)
|
12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
March 2012
|
Mar. 31, 2013
March 2012
|
Mar. 31, 2012
September 2009
|
Mar. 31, 2010
September 2009
|
Mar. 31, 2011
May 2009
|
Mar. 31, 2013
September 2008
|
Mar. 31, 2012
September 2008
|
Mar. 31, 2011
September 2008
|
Mar. 31, 2012
January 2007
|
Mar. 31, 2011
January 2007
|
|
| Shares | |||||||||||
| Balance at the beginning of period (in shares) | 22,600,000 | 22,550,000 | 5,780,347 | 5,780,347 | 3,612,717 | 3,910,034 | 7,342,647 | 7,686,795 | 8,535,574 | 17,003,898 | |
| Issuance of warrants (in shares) | 22,550,000 | 48,042 | |||||||||
| Warrants exercised (in shares) | (5,780,347) | (3,612,717) | (3,579,239) | (392,190) | (7,298,234) | (8,468,324) | |||||
| Anti-dilution provision (in shares) | 51,437 | 146,626 | |||||||||
| Warrants expired (in shares) | (1,237,340) | ||||||||||
| Balance at the end of period (in shares) | 22,600,000 | 22,550,000 | 22,550,000 | 5,780,347 | 3,961,471 | 3,910,034 | 7,342,647 | 8,535,574 | |||