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 |