v3.19.2

Note 4 - Revenue (Details Textual) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($)
Discount on Manufacturing Services	$ 3.3

X

- Definition

Consideration allocated to significant and incremental discount on manufacturing services.

+ References

No definition available.

+ Details

Name:	acrx_DiscountOnManufacturingServices
Namespace Prefix:	acrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration