CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 27, 2018	Apr. 30, 2018	Oct. 28, 2017	Apr. 30, 2017
Current assets:
Cash and cash equivalents	$ 151,255	$ 143,517	$ 117,109	$ 79,904
Short-term investments	138,536	113,649
Accounts receivable, net of allowance for doubtful accounts of $1,054 at October 27, 2018 and $1,080 at April 30, 2018	34,639	56,813
Unbilled receivables and retentions (inclusive of related party unbilled receivables of $7,764 at October 27, 2018 and $3,145 at April 30, 2018)	45,654	16,872
Inventories, net	46,096	37,425
Prepaid expenses and other current assets	5,732	5,103
Current assets of discontinued operations		25,668
Total current assets	421,912	399,047
Long-term investments	30,459	40,656
Property and equipment, net	20,460	19,219
Deferred income taxes	12,108	11,494
Other assets	1,628	3,002
Total assets	486,567	473,418
Current liabilities:
Accounts payable	14,149	21,340
Wages and related accruals	11,071	16,851
Income taxes payable	4,851	4,085
Customer advances	2,449	3,564
Other current liabilities	6,971	6,954
Current liabilities of discontinued operations		9,294
Total current liabilities	39,491	62,088
Deferred rent	1,478	1,536
Other non-current liabilities	1,306	622
Deferred tax liability	67	67
Liability for uncertain tax positions	49	49
Commitments and contingencies
Stockholders' equity:
Authorized shares—10,000,000; none issued or outstanding at October 27, 2018 and April 30, 2018
Issued and outstanding shares—23,928,373 shares at October 27, 2018 and 23,908,736 at April 30, 2018	2	2
Additional paid-in capital	171,867	170,139
Accumulated other comprehensive income (loss)	5	(21)
Retained earnings	272,300	238,913
Total AeroVironment stockholders' equity	444,174	409,033
Noncontrolling interest	2	23
Total equity	444,176	409,056
Total liabilities and stockholders' equity	$ 486,567	$ 473,418