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Goodwill
9 Months Ended
Jan. 29, 2022
Goodwill.  
Goodwill

9. Goodwill

The following table presents the changes in the Company’s goodwill balance (in thousands):

Small UAS

TMS

MUAS

All other

Total

Balance at April 30, 2021

$

6,340

$

$

288,611

$

19,254

$

314,205

Additions to goodwill

1,395

19,564

20,959

Impairment of goodwill

Balance at January 29, 2022

$

6,340

$

-

$

290,006

$

38,818

$

335,164

The goodwill balance at April 30, 2021 is attributable to the acquisitions of Pulse, ISG, and Arcturus acquisitions. The MUAS addition to goodwill relates to measurement period adjustments for pre-acquisition tax returns. The addition to

All other goodwill is attributable to the Telerob acquisition, which was recorded in Euros and translated to dollars at each reporting date. Refer to Note 18—Business Acquisitions for further details.