Annual report pursuant to Section 13 and 15(d)

Business and summary of significant accounting policies (Details 2)

v3.3.0.814
Business and summary of significant accounting policies (Details 2) - Total Revenue
12 Months Ended
Sep. 30, 2015
Performance-based contracts  
Revenue Recognition  
Percentage of total revenue 44.00%
Cost-plus contracts  
Revenue Recognition  
Percentage of total revenue 29.00%
Fixed-price contracts  
Revenue Recognition  
Percentage of total revenue 21.00%
Time and materials contracts  
Revenue Recognition  
Percentage of total revenue 6.00%