Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2017	Jul. 31, 2017
Current assets:
Cash and cash equivalents	$ 96,806	$ 129,298
Short-term marketable securities	50,555	18,797
Accounts receivable, net of allowance for doubtful accounts of $608 and $752 as of October 31, 2017 and July 31, 2017, respectively	73,111	77,587
Inventory	131,314	130,575
Income tax receivable	3,909	4,686
Prepaid expenses and other current assets	8,520	9,762
Total current assets	364,215	370,705
Long-term marketable securities	35,539	26,171
Property, plant, and equipment, net	100,302	102,676
Intangible assets, net	24,606	25,925
Goodwill	2,344	2,344
Deferred income taxes	5,056	5,168
Other assets	5,269	5,094
Total assets	537,331	538,083
Current liabilities:
Accounts payable	25,728	27,179
Accrued employee compensation and benefits	15,384	18,171
Accrued income tax	1,293	708
Accrued warranty	4,941	5,306
Accrued restructuring charges	1,436	2,786
Deferred revenue	5,479	4,774
Customer deposits	3,323	3,538
Other current liabilities	4,980	4,648
Total current liabilities	62,564	67,110
Long-term liabilities:
Accrued income taxes, net of current portion	758	734
Other long-term liabilities	9,375	9,745
Total long-term liabilities	10,133	10,479
Guarantees, commitments and contingencies (Note 15)
Stockholders’ Equity:
Common stock, $0.05 par value; 30,000,000 shares authorized and 12,486,441 shares issued and outstanding as of October 31, 2017; 30,000,000 shares authorized and 12,467,824 shares issued and outstanding as of July 31, 2017	623	622
Capital in excess of par value	158,223	157,907
Retained earnings	311,569	307,104
Accumulated other comprehensive loss	(5,781)	(5,139)
Total stockholders’ equity	464,634	460,494
Total liabilities and stockholders’ equity	$ 537,331	$ 538,083