Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details 3)

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Commitments and Contingencies (Details 3) (Research, development and testing of a more efficient microturbine Combined Heat and Power (CHP) system, DOE, USD $)
In Millions, unless otherwise specified
1 Months Ended 6 Months Ended
Sep. 30, 2010
kW
Sep. 30, 2014
Research, development and testing of a more efficient microturbine Combined Heat and Power (CHP) system | DOE
   
Commitments and Contingencies    
Projected electrical efficiency of microturbine (as a percent) 42.00%  
Power output of microturbine (in kW) 370  
Projected cost of research, development and testing project $ 17.4  
Contribution by other party   5.0
Expense to be incurred by the company in research and development   12.4
Period of contract   5 years
Cumulative amount of bill under contract   $ 3.9