Investments - Narrative (Details) (USD $)	Apr. 01, 2014	Mar. 31, 2014		Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Fair Value		$ 10,254,000		$ 10,231,000
Other Investments		400,000		400,000
Equity Method Investments	500,000	200,000		300,000
Cost Basis		10,265,000	[1]	10,246,000	[1]
Short Term Bond Mutual Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		7,989,000		7,985,000
Cost Basis		8,000,000	[1]	8,000,000
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		1,644,000		1,634,000
Cost Basis		1,644,000	[1]	1,634,000	[1]
Other Investment [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		621,000		612,000
Cost Basis		621,000	[1]	612,000	[1]
Mutual Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		$ 1,000,000		$ 1,007,000

[1] The cost basis represents the actual amount paid less any permanent impairment recorded on that asset.