CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Current Assets:
Cash and cash equivalents	$ 118,639	$ 36,584
Short-term investments	6,042	13,170
Restricted cash	0	19,154
Accounts receivable, less allowance for doubtful accounts of $301 and $157	112,093	92,548
Contract assets	55,374	82,545
Inventories	29,202	21,352
Income taxes receivable	233	6,904
Prepaid expenses	4,335	3,775
Other current assets	2,650	630
Total Current Assets	328,568	276,662
Property, plant and equipment, net	120,812	128,764
Restricted cash	0	5,987
Goodwill and intangible assets, net	1,337	1,514
Other assets	5,117	5,937
Deferred income taxes	11,577	11,087
Total Assets	467,411	429,951
Current Liabilities:
Current maturities of long-term debt	400	400
Accounts payable	51,180	40,714
Contract liabilities	71,464	43,174
Accrued compensation and benefits	20,182	22,274
Accrued product warranty	2,946	2,604
Income taxes payable	913	897
Other current liabilities	10,811	7,786
Total Current Liabilities	157,896	117,849
Long-term debt, net of current maturities	800	1,200
Deferred compensation (Note J)	6,447	5,902
Other long-term liabilities	3,115	3,356
Total Liabilities	168,258	128,307
Commitments and Contingencies (Note H)
Stockholders' Equity:
Preferred stock, par value $.01; 5,000,000 shares authorized; none issued	0	0
Common stock, par value $.01; 30,000,000 shares authorized; 12,372,766 and 12,280,556 shares issued, respectively	124	123
Additional paid-in capital	59,153	56,769
Retained earnings	289,422	291,530
Treasury stock, 806,018 shares at cost	(24,999)	(24,999)
Accumulated other comprehensive loss	(24,547)	(21,779)
Total Stockholders' Equity	299,153	301,644
Total Liabilities and Stockholders' Equity	$ 467,411	$ 429,951