Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Current Assets:
Cash and cash equivalents	$ 107,748	$ 90,040
Accounts receivable, less allowance for doubtful accounts of $703 and $1,399, respectively	119,420	125,771
Costs and estimated earnings in excess of billings on uncompleted contracts	86,621	86,734
Inventories, net	28,983	32,917
Income taxes receivable	3,022	485
Deferred income taxes	4,716	4,598
Prepaid expenses and other current assets	6,831	5,865
Total Current Assets	357,341	346,410
Property, plant and equipment, net	144,589	78,652
Goodwill	1,003	1,003
Intangible assets, net	11,612	13,317
Deferred income taxes	9,025	2,423
Other assets	7,333	6,507
Total Assets	530,903	448,312
Current Liabilities:
Current maturities of long-term debt and capital lease obligations	416	725
Income taxes payable	5,917	3,516
Accounts payable	58,501	48,490
Accrued salaries, bonuses and commissions	27,474	25,822
Billings in excess of costs and estimated earnings on uncompleted contracts	60,201	37,144
Accrued product warranty	5,450	5,714
Other accrued expenses	10,104	9,462
Total Current Liabilities	168,063	130,873
Long-term debt and capital lease obligations, net of current maturities	3,200	3,630
Deferred compensation	3,480	2,891
Postretirement benefit obligation	739	685
Other liabilities	195	130
Total Liabilities	175,677	138,209
Commitments and Contingencies (Note J)
Stockholders’ Equity:
Preferred stock, par value $.01; 5,000,000 shares authorized; none issued
Common stock, par value $.01; 30,000,000 shares authorized; 11,970,967 and 11,915,673 shares issued and outstanding, respectively	119	119
Additional paid-in capital	43,193	38,452
Retained earnings	313,987	271,911
Accumulated other comprehensive loss	(2,073)	(379)
Total Stockholders’ Equity	355,226	310,103
Total Liabilities and Stockholders’ Equity	$ 530,903	$ 448,312