CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Statement of Financial Position [Abstract]
Accounts receivable, net allowances	$ 5,342	$ 7,336
Contract costs, net of progress payments	16,467	16,985
Debt discount, long term debt	$ (5,594)	$ (9,584)
Preferred stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Preferred stock, share authorized (in Shares)	3,000,000	3,000,000
Preferred stock, shares issued (in Shares)	0	0
Common stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Common stock, share authorized (in Shares)	85,000,000	85,000,000
Common stock, shares issued (in Shares)	79,080,000	78,484,000
Treasury shares (in Shares)	30,737,000	25,336,000