Stockholders' Equity	12 Months Ended
Dec. 31, 2018
Stockholders Equity Note [Abstract]
Stockholders' Equity	G. Stockholders' Equity Share Repurchase Program On August 29, 2011, the Board authorized the Company to repurchase up to 100,000 shares of its common stock in accordance with applicable securities laws. This authorization increased the total number of shares authorized and available for repurchase under the Company's existing share repurchase program to 540,000 shares, at such times, amounts and prices as the Company shall deem appropriate. As of December 31, 2018, the Company had repurchased a total of 81,584 shares of common stock at a cost of $580,000, which shares are currently held in treasury. Warrants On August 6, 2013, the Company distributed 12,981,025 warrants to purchase shares of the Company's common stock as a dividend to holders of the Company's common stock on July 29, 2013, the record date for the dividend. Stockholders received five warrants for each share of the Company's common stock owned on the record date. When exercisable, 25 warrants will entitle their holder to purchase one share of the Company's common stock at an exercise price of $7.50 per share (subject to adjustment). On August 6, 2018, on the expiration date, the Company received gross proceeds of $926,948 and issued 123,593 shares as a result of exercises of its warrants.

Stockholders' Equity

12 Months Ended

Dec. 31, 2018

G. Stockholders' Equity

Share Repurchase Program

On August 29, 2011, the Board authorized the Company to repurchase up to 100,000 shares of its common stock in accordance with applicable securities laws. This authorization increased the total number of shares authorized and available for repurchase under the Company's existing share repurchase program to 540,000 shares, at such times, amounts and prices as the Company shall deem appropriate. As of December 31, 2018, the Company had repurchased a total of 81,584 shares of common stock at a cost of $580,000, which shares are currently held in treasury.

Warrants

On August 6, 2013, the Company distributed 12,981,025 warrants to purchase shares of the Company's common stock as a dividend to holders of the Company's common stock on July 29, 2013, the record date for the dividend. Stockholders received five warrants for each share of the Company's common stock owned on the record date. When exercisable, 25 warrants will entitle their holder to purchase one share of the Company's common stock at an exercise price of $7.50 per share (subject to adjustment). On August 6, 2018, on the expiration date, the Company received gross proceeds of $926,948 and issued 123,593 shares as a result of exercises of its warrants.