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13. Shareholder's Equity (Details)
 3 Months Ended
Jun. 30, 2013
Shareholders Equity Details  
Outstanding shares as of March 31, 2013 90,473,475
Exchange of Series E Preferred for common stock 157,499,999
Exchange of Series E Preferred warrants for common stock 102,326,388
Exchange of certain debts for common stock 34,999,984
Sales of common stock 13,916,665
Conversion of Series D Preferred into common stock 649,215
Other 367,191
Outstanding shares as of June 30, 2013 400,232,917