Prior Period Revision (Narrative) (Details) (USD $)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013 item	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013 Restatement Adjustment [Member]
Number of previously uncorrected misstatements		3
Pre-tax income	$ 69,000		$ 1,949,000	$ (3,922,000)	$ 3,907,000	$ 70,000
Decrease to short term note receivable due to revision	3,465,000	3,987,000		3,465,000		(275,000)
Increase to long term note receivable due to revision	26,057,000	27,659,000		26,057,000		275,000
Increase in long-term deferred tax assets due to revision	9,998,000	7,325,000		9,998,000		305,000
Decrease to deferred income tax expense due to revision				(271,000)		(305,000)
Increase to retained earnings due to revision	$ 216,273,000	$ 226,480,000		$ 216,273,000		$ 375,000