Investments - Investment Activity (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost	$ 18,067	[1]	$ 5,458	[1]
Trading, gross unrealized gain	92	[1]	75	[1]
Trading, gross unrealized (losses)	(342)	[1]	(775)	[1]
Trading, fair value	17,817	[1]	4,758	[1]
Available-for-sale, cost	4,851	[2],[3]	8,065	[2],[3]
Available-for-sale, gross unrealized gains	1,425	[2],[3]	1,289	[2],[3]
Available-for-sale, gross unrealized (losses)	(80)	[2],[3]	(301)	[2],[3]
Available-for-sale securities, fair value	6,196	[2],[3]	9,053	[2],[3]
Available-for-sale securities, gross unrealized gain (loss)	1,345		988
Available-for-sale securities, net unrealized gain (loss)	888		652
Common stock - Domestic [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Available-for-sale, cost	535	[3]	266	[3]
Available-for-sale, gross unrealized gains	586	[3]	313	[3]
Available-for-sale, gross unrealized (losses)	(3)	[3]	0	[3]
Available-for-sale securities, fair value	1,118	[3]	579	[3]
Common stock - International [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Available-for-sale, cost	607	[3]	604	[3]
Available-for-sale, gross unrealized gains	802	[3]	216	[3]
Available-for-sale, gross unrealized (losses)	0	[3]	(5)	[3]
Available-for-sale securities, fair value	1,409	[3]	815	[3]
Offshore fund [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost	1,184	[1]	1,184	[1]
Trading, gross unrealized gain	0	[1]	0	[1]
Trading, gross unrealized (losses)	(186)	[1]	(398)	[1]
Trading, fair value	998	[1]	786	[1]
Available-for-sale, cost			5,000	[3]
Available-for-sale, gross unrealized gains			0	[3]
Available-for-sale, gross unrealized (losses)			(288)	[3]
Available-for-sale securities, fair value			4,712	[3]
Mutual funds - International equity [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost			516	[1]
Trading, gross unrealized gain			0	[1]
Trading, gross unrealized (losses)			(156)	[1]
Trading, fair value			360	[1]
Mutual funds - Fixed income [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost	16,241	[1]	3,116	[1]
Trading, gross unrealized gain	92	[1]	75	[1]
Trading, gross unrealized (losses)	0	[1]	0	[1]
Trading, fair value	16,333	[1]	3,191	[1]
Available-for-sale, cost	1,228	[3]	1,000	[3]
Available-for-sale, gross unrealized gains	21	[3]	4	[3]
Available-for-sale, gross unrealized (losses)	(2)	[3]	0	[3]
Available-for-sale securities, fair value	1,247	[3]	1,004	[3]
Mutual funds - Domestic equity [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost	535	[1]	535	[1]
Trading, gross unrealized gain	0	[1]	0	[1]
Trading, gross unrealized (losses)	(76)	[1]	(136)	[1]
Trading, fair value	459	[1]	399	[1]
Available-for-sale, cost	543	[3]	1,010	[3]
Available-for-sale, gross unrealized gains	7	[3]	756	[3]
Available-for-sale, gross unrealized (losses)	0	[3]	0	[3]
Available-for-sale securities, fair value	550	[3]	1,766	[3]
Corporate debt [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Available-for-sale, cost	1,706	[3]
Available-for-sale, gross unrealized gains	0	[3]
Available-for-sale, gross unrealized (losses)	(74)	[3]
Available-for-sale securities, fair value	1,632	[3]
Other [Member]
Schedule of Trading Securities and Available-for-Sale Securities [Line Items]
Trading, cost	107	[1]	107	[1]
Trading, gross unrealized gain	0	[1]	0	[1]
Trading, gross unrealized (losses)	(80)	[1]	(85)	[1]
Trading, fair value	27	[1]	22	[1]
Available-for-sale, cost	232	[3]	185	[3]
Available-for-sale, gross unrealized gains	9	[3]	0	[3]
Available-for-sale, gross unrealized (losses)	(1)	[3]	(8)	[3]
Available-for-sale securities, fair value	$ 240	[3]	$ 177	[3]

[1] Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.

[2] Net unrealized gains on available-for-sale securities gross and net of tax as of June 30, 2014, are $1,345 and $888, respectively, and as of June 30, 2013, are $988 and $652, respectively.

[3] Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income (loss) as a separate component of shareholders’ equity until realized.