DETROIT (WWJ/AP) – Mortgage giant Quicken Loans says its book of employee rules didn’t violate its workers’ free-speech rights because it was irrelevant to daily operations and was largely ignored by staffers.

Attorney Russell Linden told the administrative law judge hearing a case this week against Detroit-based Quicken brought by the National Labor Relations Board that the handbook known as the Big Book was “an afterthought at best after it was distributed.”

READ MORE: Highland Park Shooting Suspect Bobby Crimo III Charged With 7 Counts Of First-Degree Murder

The board alleges that Quicken’s employee handbook, known as the Big Book, bars employees from discussing issues such as salaries and benefits, discussions that are protected under Section 7 of the National Labor Relations Act, guaranteeing the right to unionize, according to a report in the Detroit Free Press.

The judge could take up to several weeks to issue a decision.

READ MORE: Recession Concerns Loom, Financial Experts Say Don't Make Emotional Decisions

The NLRB compliant says Quicken overly restricted employees’ free speech and should rewrite its rules for workers and educate employees about their rights.

Quicken says it told employees Friday the handbook was rescinded. Quicken earlier denied that its work rules were overly restrictive.

MORE NEWS: Beech Leaf Disease Found In St. Clair County

TM and © Copyright 2015 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2015 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.