Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details 3)

v2.4.0.6
Summary of Significant Accounting Policies (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Revenue by product      
Total $ 127,557 $ 109,371 $ 81,890
C30
     
Revenue by product      
Total 6,756 4,426 6,043
C65
     
Revenue by product      
Total 22,899 28,680 23,377
TA100
     
Revenue by product      
Total 1,485 681 5,121
C200
     
Revenue by product      
Total 18,099 7,361 5,289
C600
     
Revenue by product      
Total 12,384 7,567 2,172
C800
     
Revenue by product      
Total 5,324 8,728 4,362
C1000
     
Revenue by product      
Total 35,571 32,475 18,619
Waste heat recovery generator
     
Revenue by product      
Total     627
Unit upgrades
     
Revenue by product      
Total 129   704
Total from Micro turbine Products
     
Revenue by product      
Total 102,647 89,918 66,314
Accessories, Parts and Service
     
Revenue by product      
Total $ 24,910 $ 19,453 $ 15,576