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INVESTMENTS (Details) - Components of Company's Trading and Available-for-Sale Investments - USD ($)
$ in Thousands
Mar. 31, 2017
Jun. 30, 2016
Trading securities1    
Trading, cost [1] $ 10,648 $ 11,048
Trading, gross unrealized gain [1] 50 124
Trading, gross unrealized (losses) [1] (978) (1,068)
Trading, fair value [1] 9,720 10,104
Available-for-sale securities2    
Available-for-sale, cost [2],[3] 3,319 3,436
Available-for-sale, gross unrealized gain [2],[3] 440 151
Available-for-sale, gross unrealized (losses) [2],[3] (235) (106)
Available-for-sale, fair value [2],[3] 3,524 3,481
Fixed Income Securities [Member]    
Trading securities1    
Trading, cost [1] 8,884 9,284
Trading, gross unrealized gain [1] 50 124
Trading, gross unrealized (losses) [1] (7) 0
Trading, fair value [1] 8,927 9,408
Available-for-sale securities2    
Available-for-sale, cost [3] 1,148 1,226
Available-for-sale, gross unrealized gain [3] 1 18
Available-for-sale, gross unrealized (losses) [3] (2) (23)
Available-for-sale, fair value [3] 1,147 1,221
Mutual Funds, Domestic Equity [Member]    
Trading securities1    
Trading, cost [1] 535 535
Trading, gross unrealized gain [1] 0 0
Trading, gross unrealized (losses) [1] (172) (197)
Trading, fair value [1] 363 338
Available-for-sale securities2    
Available-for-sale, cost [3] 394 394
Available-for-sale, gross unrealized gain [3] 14 2
Available-for-sale, gross unrealized (losses) [3] 0 0
Available-for-sale, fair value [3] 408 396
Other Securities [Member]    
Trading securities1    
Trading, cost [1] 45 45
Trading, gross unrealized gain [1] 0 0
Trading, gross unrealized (losses) [1] (45) (45)
Trading, fair value [1] 0 0
Available-for-sale securities2    
Available-for-sale, cost [3] 55 56
Available-for-sale, gross unrealized gain [3] 7 8
Available-for-sale, gross unrealized (losses) [3] 0 0
Available-for-sale, fair value [3] 62 64
Offshore Fund [Member]    
Trading securities1    
Trading, cost [1] 1,184 1,184
Trading, gross unrealized gain [1] 0 0
Trading, gross unrealized (losses) [1] (754) (826)
Trading, fair value [1] 430 358
Common Stock - Domestic [Member]    
Available-for-sale securities2    
Available-for-sale, cost [3] 109 109
Available-for-sale, gross unrealized gain [3] 16 21
Available-for-sale, gross unrealized (losses) [3] 0 0
Available-for-sale, fair value [3] 125 130
Common Stock - International [Member]    
Available-for-sale securities2    
Available-for-sale, cost [3] 575 613
Available-for-sale, gross unrealized gain [3] 5 16
Available-for-sale, gross unrealized (losses) [3] (233) (83)
Available-for-sale, fair value [3] 347 546
Corporate Debt Securities [Member]    
Available-for-sale securities2    
Available-for-sale, cost [3] 1,038 1,038
Available-for-sale, gross unrealized gain [3] 397 86
Available-for-sale, gross unrealized (losses) [3] 0 0
Available-for-sale, fair value [3] $ 1,435 $ 1,124
[1] Unrealized and realized gains and losses on trading securities are included in earnings in the statement of operations.
[2] Net unrealized gains (losses) on available-for-sale securities gross and net of tax as of March 31, 2017, are $205 and $205, respectively, and as of June 30, 2016, are $45 and $45, respectively.
[3] Unrealized gains and losses on available-for-sale securities are excluded from earnings and recorded in other comprehensive income as a separate component of shareholders' equity until realized.