Related Party Transactions (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) item	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Related Party Transactions [Abstract]
Royalty-free license agreement written notice of termination period minimum (in months)			6 months
Property management contract term (in years)			7 years
Extended property management contract period (in years)			1 year
Management fee revenues	$ 133,000	$ 165,000	$ 280,000	$ 331,000
Number of assets owned that are maintained by Public Storage | item	2		2
Property management contract written notice of termination period minimum (in days)			60 days
Management fee expenses	$ 19,000	17,000	$ 38,000	33,000
Administrative services costs	117,000	$ 118,000	235,000	$ 226,000
Due from related parties					$ 166,000
Due to related parties	$ 101,000		$ 101,000