XML 50 R37.htm IDEA: XBRL DOCUMENT v3.8.0.1

Summary of Significant Accounting Policies (Revenue) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Accounting Policies [Abstract]
Revenue, percentage	100.00%	100.00%	100.00%

X

- Definition

Percentage of revenue represented from National Institutes of Health and BARDA.

+ References

No definition available.

+ Details

Name:	siga_RevenuePercentage
Namespace Prefix:	siga_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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