Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details 2)

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Intangible Assets (Details 2) (Solar, USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Mar. 31, 2012
Solar
         
Intangible Assets          
Royalties earned $ 19,500 $ 16,900 $ 52,100 $ 55,300  
Unpaid earned royalties     $ 19,500   $ 17,500
Years subject to payment of per-unit royalty fees     17 years