Name:	stdy_AmountOfRightToReceiveEachOutstandingWarrantIssuedPursuantTo2016SubscriptionAgreement
Namespace Prefix:	stdy_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Amount of right to receive consideration for each outstanding warrant issued pursuant to 2017 subscription agreement immediately prior to merger.

No definition available.

Name:	stdy_AmountOfRightToReceiveEachOutstandingWarrantIssuedPursuantTo2017SubscriptionAgreement
Namespace Prefix:	stdy_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

For contingent consideration in connection with a business acquisition, the right to receive additional share price in cash.

No definition available.

Name:	stdy_ContingentConsiderationBusinessAcquisitionAdditionalSharePrice
Namespace Prefix:	stdy_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Maximum exercise price of option to receive consideration at the merger.

No definition available.

Name:	stdy_MaximumExercisePriceOfOptionsToReceiveConsideration
Namespace Prefix:	stdy_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

Name:	us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

No definition available.

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Amount of liability recognized arising from contingent consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.