7. Income Tax (Details) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Current:
Federal	$ 77,000	$ 35,000	$ 79,000	$ 55,000
State	9,000	8,000	13,000	15,000
Total current income tax	86,000	43,000	92,000	70,000
Deferred:
Federal	197,000	342,000	397,000	475,000
State	10,000	20,000	21,000	28,000
Total deferred income tax	207,000	362,000	418,000	503,000
Income tax expense	$ 293,000	$ 405,000	$ 510,000	$ 573,000