Investments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Available-for-Sale Securities by Investment Category
Amortized Cost	$ 15,474	$ 14,026
Gross Unrealized Gains	458	309
Gross Unrealized Losses	(189)	(133)
Fair Value	11,652	10,184
Fair Value	15,743	14,202
U.S. Treasury and Government Agencies [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost	1,355	1,371
Gross Unrealized Gains	12	11
Gross Unrealized Losses		(1)
Fair Value	1,367	1,381
Mortgage-backed securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost	5,248	3,946
Gross Unrealized Gains	23	17
Gross Unrealized Losses	(86)	(48)
Fair Value	5,185	3,915
States and political subdivisions [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost	1,430	1,186
Gross Unrealized Gains	30	26
Fair Value	1,460	1,212
Corporate debt securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost	3,581	3,640
Gross Unrealized Gains	59	37
Gross Unrealized Losses		(1)
Fair Value	3,640	3,676
Marketable equity securities [Member]
Available-for-Sale Securities by Investment Category
Amortized Cost	3,860	3,883
Gross Unrealized Gains	334	218
Gross Unrealized Losses	(103)	(83)
Fair Value	$ 4,091	$ 4,018

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References+ Details

- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

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+ Details

- Definition

Amount of equity securities categorized neither as held-to-maturity nor as trading.

+ References

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+ Details

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details