Nature of Operations and Summary of Significant Accounting Policies (Details 1) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Company's assets measured at fair value
Total	$ 81,375,000	$ 72,486,000
Equities [Member]
Company's assets measured at fair value
Total	13,912,000	24,213,000
Mutual Funds [Member]
Company's assets measured at fair value
Total	18,588,000	2,566,000
Corporate Bonds [Member]
Company's assets measured at fair value
Total	14,178,000	7,845,000
Municipal Bonds [Member]
Company's assets measured at fair value
Total	28,513,000	35,844,000
Government Securities [Member]
Company's assets measured at fair value
Total	6,000,000
Cash and Money Funds [Member]
Company's assets measured at fair value
Total	184,000	2,018,000
Level 1 [Member]
Company's assets measured at fair value
Total	38,684,000	28,797,000
Level 1 [Member] | Equities [Member]
Company's assets measured at fair value
Total	13,912,000	24,213,000
Level 1 [Member] | Mutual Funds [Member]
Company's assets measured at fair value
Total	18,588,000	2,566,000
Level 1 [Member] | Government Securities [Member]
Company's assets measured at fair value
Total	6,000,000
Level 1 [Member] | Cash and Money Funds [Member]
Company's assets measured at fair value
Total	184,000	2,018,000
Level 2 [Member]
Company's assets measured at fair value
Total	42,691,000	43,689,000
Level 2 [Member] | Corporate Bonds [Member]
Company's assets measured at fair value
Total	14,178,000	7,845,000
Level 2 [Member] | Municipal Bonds [Member]
Company's assets measured at fair value
Total	28,513,000	35,844,000
Level 3 [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Equities [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Mutual Funds [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Corporate Bonds [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Municipal Bonds [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Government Securities [Member]
Company's assets measured at fair value
Total
Level 3 [Member] | Cash and Money Funds [Member]
Company's assets measured at fair value
Total