Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financial liability recorded at fair value on a recurring basis [Abstract]
Interest rate swap	$ 370	$ 0
Carrying Value (Balance Sheet) [Member]
Fixed-rate debt outstanding [abstract]
Fixed-rate debt	1,645	960
Fair Value [Member]
Fixed-rate debt outstanding [abstract]
Fixed-rate debt	1,675	985
Recurring [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Money market funds	6,200	2,650
Interest rate swap	(370)
Fair Value, Net Asset (Liability), Total	5,830
Recurring [Member] | Level 1 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Money market funds	6,200	2,650
Interest rate swap	0
Fair Value, Net Asset (Liability), Total	6,200
Recurring [Member] | Level 2 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Money market funds	0	0
Interest rate swap	(370)
Fair Value, Net Asset (Liability), Total	(370)
Recurring [Member] | Level 3 [Member]
Financial liability recorded at fair value on a recurring basis [Abstract]
Money market funds	0	0
Interest rate swap	0
Fair Value, Net Asset (Liability), Total	$ 0