Note 13 - Restructured Debt Liability - Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructured debt liability - contingent milestone payments	$ 15,000	$ 15,000	$ 15,000
Deerfield Loan [Member]
Restructured debt liability - contingent milestone payments		$ 15,000	$ 15,000

Amount of restructured debt liability for contingent milestone payments, due after one year or the normal operating cycle, if longer.

No definition available.

Name:	wint_LiabilityforContingentMilestonePaymentNoncurrent
Namespace Prefix:	wint_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant