6. Income Tax (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Current:
Federal	$ 13,000	$ 29,000	$ 36,000	$ 114,000
State	1,000	5,000	4,000	15,000
Total current income tax	14,000	34,000	40,000	129,000
Deferred:
Federal	80,000	438,000	149,000	648,000
State	7,000	31,000	12,000	46,000
Total deferred income tax	87,000	469,000	161,000	694,000
Income tax expense	$ 101,000	$ 503,000	$ 201,000	$ 823,000