Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 27, 2018	Apr. 30, 2017
Current assets:
Cash and cash equivalents	$ 112,304	$ 79,904
Short-term investments	109,543	119,971
Accounts receivable, net of allowance for doubtful accounts of $1,360 at January 27, 2018 and $291 at April 30, 2017	25,690	74,361
Unbilled receivables and retentions	24,961	14,120
Inventories, net	77,327	60,076
Income taxes receivable	292
Prepaid expenses and other current assets	5,138	5,653
Total current assets	355,255	354,085
Long-term investments	38,822	42,096
Property and equipment, net	21,626	19,220
Deferred income taxes	14,837	15,089
Other assets	2,305	2,010
Total assets	432,845	432,500
Current liabilities:
Accounts payable	13,249	20,283
Wages and related accruals	15,090	12,966
Income taxes payable		1,418
Customer advances	3,555	3,317
Other current liabilities	8,651	10,079
Total current liabilities	40,545	48,063
Deferred rent	1,589	1,719
Capital lease obligations - net of current portion	7	161
Other non-current liabilities	184	184
Deferred tax liability	67	116
Liability for uncertain tax positions	64	64
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value: Authorized shares—10,000,000; none issued or outstanding at January 27, 2018 and April 30, 2017
Common stock, $0.0001 par value: Authorized shares—100,000,000 Issued and outstanding shares—23,906,043 shares at January 27, 2018 and 23,630,419 at April 30, 2017	2	2
Additional paid-in capital	168,735	162,150
Accumulated other comprehensive loss	(25)	(127)
Retained earnings	221,676	219,929
Total AeroVironment stockholders' equity	390,388	381,954
Noncontrolling interest	1	239
Total equity	390,389	382,193
Total liabilities and stockholders' equity	$ 432,845	$ 432,500