Treasury And Common Stock - Schedule Of Common Stock (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Beginning balance, Shares	26,574,031	26,505,210	25,641,484
Beginning balance, Amount	$ 532	$ 530	$ 514
Common stock issued in connection with long-term incentive plan, Shares	68,219	68,821	182,402
Common stock issued in connection with long-term incentive plan, Amount			2
Common stock issued for the purchase of additional ViSalus interest, Amount			14
Purchase of additional Visalus interest, shares			681,324
Ending balance, Shares	26,642,250	26,574,031	26,505,210
Ending balance, Amount	533	532	530
Purchase of additional ViSalus interest	1,166	1,654	14,628
Common Stock [Member]
Common stock issued in connection with long-term incentive plan, Amount		2
Common stock issued for the purchase of additional ViSalus interest, Amount			14
Purchase of additional ViSalus interest	$ 1	$ 2	$ 2