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Filing Detail
Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001437749-21-010003
Filing Date
2021-04-28
Accepted
2021-04-28 13:03:11
Documents
15
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K/A nrc20210419_10ka.htm   iXBRL 10-K/A 511938
2 EXHIBIT 31.1 ex_242136.htm EX-31.1 3978
3 EXHIBIT 31.2 ex_242137.htm EX-31.2 4222
  Complete submission text file 0001437749-21-010003.txt   753234

Data Files

Seq Description Document Type Size
4 XBRL TAXONOMY EXTENSION SCHEMA nrc-20201231.xsd EX-101.SCH 3692
5 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE nrc-20201231_def.xml EX-101.DEF 15793
6 XBRL TAXONOMY EXTENSION LABEL LINKBASE nrc-20201231_lab.xml EX-101.LAB 21379
7 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE nrc-20201231_pre.xml EX-101.PRE 16552
8 EXTRACTED XBRL INSTANCE DOCUMENT nrc20210419_10ka_htm.xml XML 5765
Mailing Address 1245 Q STREET LINCOLN NE 68508
Business Address 1245 Q STREET LINCOLN NE 68508 4024752525
NATIONAL RESEARCH CORP (Filer) CIK: 0000070487 (see all company filings)

IRS No.: 470634000 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-35929 | Film No.: 21862940
SIC: 8731 Services-Commercial Physical & Biological Research