CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 29, 2016	Apr. 30, 2016
Current assets:
Cash and cash equivalents	$ 88,876	$ 124,287
Short-term investments	118,208	103,404
Accounts receivable, net of allowance for doubtful accounts of $380 at October 29, 2016 and $262 at April 30, 2016	26,102	56,045
Unbilled receivables and retentions	16,870	18,899
Inventories, net	55,168	37,486
Income tax receivable	3,957
Prepaid expenses and other current assets	4,706	4,150
Total current assets	313,887	344,271
Long-term investments	42,559	33,859
Property and equipment, net	17,445	16,762
Deferred income taxes	15,409	15,016
Other assets	598	750
Total assets	389,898	410,658
Current liabilities:
Accounts payable	18,662	17,712
Wages and related accruals	10,021	13,973
Income taxes payable		943
Customer advances	3,720	2,544
Other current liabilities	6,997	11,173
Total current liabilities	39,400	46,345
Deferred rent	1,820	1,714
Capital lease obligations - net of current portion	276	449
Other non-current liabilities	193	184
Liability for uncertain tax positions	62	441
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value: Authorized shares-10,000,000; none issued or outstanding
Common stock, $0.0001 par value: Authorized shares-100,000,000 Issued and outstanding shares-23,371,943 shares at October 29, 2016 and 23,359,925 at April 30, 2016	2	2
Additional paid-in capital	156,667	154,274
Accumulated other comprehensive loss	(158)	(201)
Retained earnings	191,636	207,450
Total stockholders' equity	348,147	361,525
Total liabilities and stockholders' equity	$ 389,898	$ 410,658