Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Current Assets:
Cash and cash equivalents	$ 99,632	$ 101,954
Short-term investments	11,070	14,554
Accounts receivable, less allowance for credit losses of $348 and $344	151,375	106,111
Contract assets	63,911	88,351
Inventories	55,002	50,415
Income taxes receivable	84	105
Prepaid expenses	4,703	4,679
Other current assets	3,467	3,814
Total Current Assets	389,244	369,983
Property, plant and equipment, net	99,051	98,628
Operating lease assets, net	2,159	2,179
Goodwill and intangible assets, net	1,003	1,003
Deferred income taxes	10,056	9,161
Other assets	12,159	12,426
Total Assets	513,672	493,380
Current Liabilities:
Accounts payable	38,632	63,423
Contract liabilities	133,753	79,857
Accrued compensation and benefits	10,395	24,785
Accrued product warranty	2,380	2,345
Current operating lease liabilities	1,545	1,777
Income taxes payable	2,738	1,720
Other current liabilities	14,331	12,466
Total Current Liabilities	203,774	186,373
Deferred compensation	8,930	7,749
Long-term operating lease liabilities	713	545
Other long-term liabilities	1,783	1,507
Total Liabilities	215,200	196,174
Commitments and Contingencies (Note F)
Stockholders' Equity:
Preferred stock, par value $0.01; 5,000,000 shares authorized; none issued	0	0
Common stock, par value $0.01; 30,000,000 shares authorized; 12,640,701 and 12,588,011 shares issued, respectively	126	126
Additional paid-in capital	68,454	67,439
Retained earnings	281,493	283,638
Treasury stock, 806,018 shares at cost	(24,999)	(24,999)
Accumulated other comprehensive loss	(26,602)	(28,998)
Total Stockholders' Equity	298,472	297,206
Total Liabilities and Stockholders' Equity	$ 513,672	$ 493,380