Schedule II - Valuation and Qualifying Accounts (Details) - Valuation and Qualifying Accounts (Under Review) (Allowance for Doubtful Accounts [Member], Continuing Operations [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Allowance for Doubtful Accounts [Member] | Continuing Operations [Member]
Deducted from asset accounts:
Beginning Balance	$ 122		$ 216
(Recovery From) Charged to Costs and Expenses	115		73
Deductions	42	[1]	62	[1]
Other	(22)		(105)	[2]
Ending Balance	$ 259		$ 122

[1] Uncollectible accounts written off, net of recoveries

[2] Represents allowance for doubtful accounts related to disposition of BIP (see Note 16 to the consolidated financial statements - Discontinued Operations)