Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001558370-22-004402
Filing Date
2022-03-25
Accepted
2022-03-25 17:08:53
Documents
89
Period of Report
2021-12-31

Document Format Files

Seq Description Document Type Size
1 10-K/A wldn-20211231x10ka.htm   iXBRL 10-K/A 2690339
2 EX-23.1 wldn-20211231xex23d1.htm EX-23.1 2313
3 EX-31.1 wldn-20211231xex31d1.htm EX-31.1 11188
4 EX-31.2 wldn-20211231xex31d2.htm EX-31.2 12629
5 EX-32.1 wldn-20211231xex32d1.htm EX-32.1 13120
  Complete submission text file 0001558370-22-004402.txt   14480588

Data Files

Seq Description Document Type Size
6 EX-101.SCH wldn-20211231.xsd EX-101.SCH 67884
7 EX-101.CAL wldn-20211231_cal.xml EX-101.CAL 105248
8 EX-101.DEF wldn-20211231_def.xml EX-101.DEF 322054
9 EX-101.LAB wldn-20211231_lab.xml EX-101.LAB 740374
10 EX-101.PRE wldn-20211231_pre.xml EX-101.PRE 586834
83 EXTRACTED XBRL INSTANCE DOCUMENT wldn-20211231x10ka_htm.xml XML 3621586
Mailing Address 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806
Business Address 2401 EAST KATELLA AVENUE, SUITE 300 ANAHEIM CA 92806 800-424-9144
Willdan Group, Inc. (Filer) CIK: 0001370450 (see all company filings)

EIN.: 141951112 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-33076 | Film No.: 22772328
SIC: 8711 Services-Engineering Services