Related Party Transactions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
TDR [Member]
Related Party Transaction [Line Items]
Sales total	$ 164,000	$ 2,154,000	$ 2,275,000
Recognized gains, net	41,000	858,000	1,449,000
Related party expense	477,000	651,000	603,000
Other operating revenue	4,421,000	4,623,000	4,141,000
Receivables	504,000	$ 442,000	$ 858,000
Principal Stockholder [Member]
Related Party Transaction [Line Items]
Lease annual rent payments	1.00
Leasehold improvements to land total	6,500,000
Related party expense	$ 52,000