FAIR VALUE MEASUREMENTS (Details)	6 Months Ended
Jun. 30, 2016
FAIR VALUE MEASUREMENTS
Minimum collateral percentage on reverse repurchase agreements principal	102.00%

The required collateral minimum percentage for RRAs is either U.S. Treasury or Federal Agency securities at a minimum rate of the RRAs' principal.

No definition available.

Name:	stdy_MinimumCollateralPercentageOnReverseRepurchaseAgreementsPrincipal
Namespace Prefix:	stdy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration