Statements of Stockholders' Equity (Parenthetical) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Common Stock [Member]
Cost with private placement	$ 805

Expenses with issuance of common stock private placement financing.

No definition available.

Name:	oxgn_ExpensesWithIssuanceOfCommonStockPrivatePlacementFinancing
Namespace Prefix:	oxgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration