Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001558370-21-003104
Filing Date
2021-03-17
Accepted
2021-03-16 20:38:33
Documents
112
Period of Report
2021-01-01

Document Format Files

Seq Description Document Type Size
1 10-K wldn-20210101x10k.htm   iXBRL 10-K 4931625
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  Complete submission text file 0001558370-21-003104.txt   18698997

Data Files

Seq Description Document Type Size
24 EX-101.SCH wldn-20210101.xsd EX-101.SCH 82314
25 EX-101.CAL wldn-20210101_cal.xml EX-101.CAL 113176
26 EX-101.DEF wldn-20210101_def.xml EX-101.DEF 363682
27 EX-101.LAB wldn-20210101_lab.xml EX-101.LAB 881225
28 EX-101.PRE wldn-20210101_pre.xml EX-101.PRE 674009
29 EXTRACTED XBRL INSTANCE DOCUMENT wldn-20210101x10k_htm.xml XML 3939097
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: 0101
Type: 10-K | Act: 34 | File No.: 001-33076 | Film No.: 21748081
SIC: 8711 Services-Engineering Services