Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance Beginning at Mar. 31, 2012	$ 611,571	$ 6,308,411	$ 20,132,948	$ 27,052,930
Balance Beginning (in Shares) at Mar. 31, 2012	2,446,286
Net income			644,445	644,445
Cash dividend			(611,571)	(611,571)
Compensation expense related to stock options		1,000		1,000
Balance Ending at Sep. 30, 2012	611,571	6,309,411	20,165,822	27,086,804
Balance Ending (in Shares) at Sep. 30, 2012	2,446,286
Balance Beginning at Mar. 31, 2013	611,571	6,321,411	21,191,237	28,124,219
Balance Beginning (in Shares) at Mar. 31, 2013	2,446,286
Net income			594,621	594,621
Cash dividend			(733,885)	(733,885)
Compensation expense related to stock options		12,449		12,449
Balance Ending at Sep. 30, 2013	$ 611,571	$ 6,333,860	$ 21,051,973	$ 27,997,404
Balance Ending (in Shares) at Sep. 30, 2013	2,446,286