Aggregate annual principal maturities of long-term debt at December 31, 2013 are as follows (in thousands): (Details) (USD $)	Dec. 31, 2013
Aggregate annual principal maturities of long-term debt
Annual principal maturities 2013	$ 185
Annual principal maturities 2014	903
Annual principal maturities 2015	248
Annual principal maturities 2016	247
Annual principal maturities 2017	238
Annual principal maturities Thereafter	559
Total Annual principal maturities	$ 2,380