CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Allowance for Doubtful Accounts Receivable, Current	$ 1,122	$ 1,124
Costs and estimated earnings on long-term contracts, progress billings	30,041	30,887
Advance payments on long-term contracts, costs incurred	$ 44,110	$ 23,853
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	30,247,512	30,147,504
Treasury stock, shares	4,040,532	3,707,407