Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents - money market	$ 20,000	$ 20,000
Total Assets	20,000	20,000
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap	0	0
Total Liabilities	0	0
Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents - money market	2,306,000	301,000
Total Assets	2,306,000	301,000
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap	(1,419,000)	(2,515,000)
Total Liabilities	(1,419,000)	(2,515,000)
Difference between fair value and carrying value, debt	2,500,000	6,300,000
Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents - money market	0	0
Total Assets	0	0
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap	0	0
Total Liabilities	0	0
Total [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents - money market	2,326,000	321,000
Total Assets	2,326,000	321,000
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap	(1,419,000)	(2,515,000)
Total Liabilities	(1,419,000)	(2,515,000)
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Liabilities, Fair Value Disclosure [Abstract]
Carrying value, debt	$ 344,100,000	$ 384,500,000