Fair Value Measurements - Financial Assets and (Liabilities) Carried at Fair Value (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap (liability)	$ (325,000)
Interest rate swap (asset)			573,000
Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap (liability)	(325,000)	[1]
Interest rate swap (asset)			573,000	[1]
Fair Value, Inputs, Level 1 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap (liability)	0	[1]
Interest rate swap (asset)			0	[1]
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap (liability)	(325,000)	[1]
Interest rate swap (asset)			573,000	[1]
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap (liability)	0	[1]
Interest rate swap (asset)			$ 0	[1]

[1] The fair value of the interest rate swap is determined based on forward yield curves.