XML 48 R34.htm IDEA: XBRL DOCUMENT v3.20.4

Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Jan. 02, 2021

Notes Tables

Valuation Allowances and Reserves [Table Text Block]

Description		Balance at beginning of period				Charged to costs and expenses				Deductions				Balance at end of period
January 2, 2021
Allowance for sales returns		$	772			$	115			$	68			$	819
Allowance for doubtful accounts		$	261			$	131			$	20			$	372
Valuation allowance - deferred tax assets		$	64,285			$	17,116			$	-			$	81,401
December 28, 2019
Allowance for sales returns		$	839			$	168			$	235			$	772
Allowance for doubtful accounts		$	139			$	146			$	24			$	261
Valuation allowance - deferred tax assets		$	44,199			$	20,086			$	-			$	64,285
December 29, 2018
Allowance for sales returns		$	632			$	307			$	100			$	839
Allowance for doubtful accounts		$	325			$	8			$	194			$	139
Valuation allowance - deferred tax assets		$	13,980			$	30,219			$	-			$	44,199

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of a schedule of allowance and reserve accounts where the valuation and qualifying accounts are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

No definition available.

+ Details

Name:	usna_ValuationAllowancesAndReservesTableTextBlock
Namespace Prefix:	usna_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration