Investments (Tables)

3 Months Ended

Jun. 30, 2012

Investments [Abstract]

Available-for-Sale Securities by Investment Category

	June 30, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	1,662	$	12	$	—		$	1,674
Mortgage-backed securities		4,674		19		(72	)		4,621
States and political subdivisions		1,179		27		—			1,206
Corporate debt securities		3,611		36		—			3,647
Marketable equity securities		3,847		245		(131	)		3,961
	$	14,973	$	339	$	(203	)	$	15,109
	March 31, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury and government agencies	$	1,371	$	11	$	(1	)	$	1,381
Mortgage-backed securities		3,946		17		(48	)		3,915
States and political subdivisions		1,186		26		—			1,212
Corporate debt securities		3,640		37		(1	)		3,676
Marketable equity securities		3,883		218		(83	)		4,018
	$	14,026	$	309	$	(133	)	$	14,202

Investment Securities in a Continuous Unrealized Loss Position

	June 30, 2012
	Less than 12 Months					12 Months or Longer					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Mortgage-backed securities	$	2,373	$	(72	)	$	—	$	—		$	2,373	$	(72	)
Marketable equity securities		695		(54	)		471		(77	)		1,166		(131	)
	$	3,068	$	(126	)	$	471	$	(77	)	$	3,539	$	(203	)

	March 31, 2012
	Less than 12 Months					12 Months or Longer				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
U.S. Treasury and Government Agencies	$	249	$	(1	)	$	—	$	—	$	249	$	(1	)
Mortgage-backed securities		2,509		(48	)		—		—		2,509		(48	)
Corporate debt securities		384		(1	)		—		—		384		(1	)
Marketable equity securities		1,194		(83	)		—		—		1,194		(83	)
	$	4,336	$	(133	)	$	—	$	—	$	4,336	$	(133	)

Contractual Maturity of Investment Securities

	June 30, 2012				March 31, 2012
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	1,549	$	1,553	$	1,355	$	1,359
Due after one year through five years		5,751		5,823		5,498		5,573
Due after five years through ten years		259		272		260		270
Due after ten years		3,567		3,500		3,030		2,982
	$	11,126	$	11,148	$	10,143	$	10,184