Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2015	Mar. 31, 2015
Statement of Financial Position [Abstract]
Allowances for bad debts and cash discounts	$ 22,276	$ 27,276
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	7,975,160	7,975,160
Treasury stock, shares	1,175,716	1,175,716