Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)	Mar. 17, 2014
Subsequent Event
Subsequent Event [Line Items]
Common stock voting rights convert to cash per share	$ 3.00
Merger termination fee	$ 850,000

Common stock voting rights convert to cash per share.

No definition available.

Name:	hast_CommonStockVotingRightsConvertToCashPerShare
Namespace Prefix:	hast_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant