Segment Information (Details Narrative)	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Information Details Narrative Abstract
Direct import sales to total net sales ratio	18.00%	17.00%	13.00%	13.00%

Percentage of direct import sales to total net sales.

No definition available.

Name:	ACU_DirectImportSalesToTotalNetSalesPercentage
Namespace Prefix:	ACU_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration