Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Current Assets:
Cash and cash equivalents	$ 58,924	$ 43,569
Accounts receivable, less allowance for doubtful accounts of $1,010 and $746	82,237	101,784
Inventories	34,245	32,891
Costs and estimated earnings in excess of billings on uncompleted contracts	99,266	104,793
Income taxes receivable	2,995	1,232
Deferred income taxes	4,390	3,910
Prepaid expenses	4,401	5,004
Other current assets	4,244	3,916
Total Current Assets	290,702	297,099
Property, plant and equipment, net	150,195	154,594
Goodwill and intangible assets, net	2,299	2,393
Deferred income taxes	1,760	2,288
Other assets	10,611	10,117
Long-term receivable (Note D)	2,333	2,333
Total Assets	457,900	468,824
Current Liabilities:
Accounts payable	45,582	48,008
Accrued salaries, bonuses and commissions	15,332	19,223
Billings in excess of costs and estimated earnings on uncompleted contracts	43,407	42,057
Current maturities of long-term debt and capital lease obligations	400	400
Accrued product warranty	5,105	4,930
Other accrued expenses	9,167	7,521
Income taxes payable	1,221	784
Deferred credit ─ short term (Note D)	2,029	2,029
Total Current Liabilities	122,243	124,952
Long-term debt and capital lease obligations, net of current maturities	2,000	2,400
Deferred compensation	5,759	4,950
Other long-term liabilities	787	723
Deferred credit ─ long term (Note D)	2,029	2,537
Total Liabilities	$ 132,818	$ 135,562
Commitments and Contingencies (Note F)
Stockholders' Equity:
Preferred stock, par value $.01; 5,000,000 shares authorized; none issued
Common stock, par value $.01; 30,000,000 shares authorized; 12,164,729 and 12,100,459 shares issued and outstanding, respectively	$ 122	$ 121
Additional paid-in capital	50,055	48,507
Retained earnings	324,843	328,294
Treasury stock, 806,018 and 670,181 shares at cost, respectively	(24,999)	(21,259)
Accumulated other comprehensive loss	(24,939)	(22,401)
Total Stockholders' Equity	325,082	333,262
Total Liabilities and Stockholders' Equity	$ 457,900	$ 468,824