INVESTMENTS (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 7,016,000		$ 7,016,000		$ 7,554,000
Gross Unrealized Gain	57,000		57,000		70,000
Gross Unrealized (Loss)	0		0		0
Fair Value	7,073,000		7,073,000		7,624,000
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	25,343,000		25,343,000		32,730,000
Gross Unrecognized Gain	69,000		69,000		153,000
Gross Unrecognized (Loss)	(88,000)		(88,000)		(13,000)
Fair Value, Total investments	25,324,000		25,324,000		32,870,000
Available-for-sale Securities and Held-to-maturity Securities [Abstract]
Other-than-temporary impairment	0		0		0
Unrealized gain (loss) on available-for-sale investments, net of related income taxes	34,000		34,000		42,000
Redemptions of investments	0	0	623,000	717,000
Available-for-sale investments by stated maturity, amortized cost [Abstract]
Amortized Cost, Due in less than one year	996,000		996,000		1,027,000
Amortized Cost, Due in 1 to 4 years	6,020,000		6,020,000		6,527,000
Amortized Cost, Total investments	7,016,000		7,016,000		7,554,000
Available-for-sale investments by stated maturity, fair value [Abstract]
Fair Value, Due in less than one year	999,000		999,000		1,029,000
Fair Value, Due in 1 to 4 years	6,074,000		6,074,000		6,595,000
Fair Value, Total Investments	7,073,000		7,073,000		7,624,000
Held-to-maturity investments by stated maturity, amortized cost [Abstract]
Amortized Cost, Due in less than one year	13,448,000		13,448,000		22,325,000
Amortized Cost, Due in 1 to 4 years	11,895,000		11,895,000		10,405,000
Amortized Cost, Total investments	25,343,000		25,343,000		32,730,000
Held-to-maturity investments by stated maturity, fair value [Abstract]
Fair Value, Due in less than one year	13,474,000		13,474,000		22,387,000
Fair Value, Due in 1 to 4 years	11,850,000		11,850,000		10,483,000
Fair Value, Total investments	25,324,000		25,324,000		32,870,000
Certificates of Deposit [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	3,735,000		3,735,000		3,341,000
Gross Unrecognized Gain	0		0		0
Gross Unrecognized (Loss)	(5,000)		(5,000)		0
Fair Value, Total investments	3,730,000		3,730,000		3,341,000
Held-to-maturity investments by stated maturity, fair value [Abstract]
Fair Value, Total investments	3,730,000		3,730,000		3,341,000
Corporate Bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	16,285,000		16,285,000		16,284,000
Gross Unrecognized Gain	63,000		63,000		121,000
Gross Unrecognized (Loss)	(16,000)		(16,000)		(3,000)
Fair Value, Total investments	16,332,000		16,332,000		16,402,000
Held-to-maturity investments by stated maturity, fair value [Abstract]
Fair Value, Total investments	16,332,000		16,332,000		16,402,000
Municipal Bonds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,323,000		5,323,000		13,105,000
Gross Unrecognized Gain	6,000		6,000		32,000
Gross Unrecognized (Loss)	(67,000)		(67,000)		(10,000)
Fair Value, Total investments	5,262,000		5,262,000		13,127,000
Held-to-maturity investments by stated maturity, fair value [Abstract]
Fair Value, Total investments	5,262,000		5,262,000		13,127,000
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	996,000		996,000		996,000
Gross Unrealized Gain	3,000		3,000		5,000
Gross Unrealized (Loss)	0		0		0
Fair Value	999,000		999,000		1,001,000
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,020,000		6,020,000		6,029,000
Gross Unrealized Gain	54,000		54,000		65,000
Gross Unrealized (Loss)	0		0		0
Fair Value	6,074,000		6,074,000		6,094,000
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost					529,000
Gross Unrealized Gain					0
Gross Unrealized (Loss)					0
Fair Value					$ 529,000