Stockholders' Equity	12 Months Ended
Dec. 31, 2017
Stockholders Equity Note [Abstract]
Stockholders' Equity	H. 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, 2017, 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. Rights Offering Pursuant to a Registration Statement on Form S-1 (Registration No. 333-218901) under the Securities Act of 1933, as amended (the "Securities Act"), and declared effective by the SEC on September 5, 2017, the Company distributed, at no charge, to the holders of the Company’s common stock, as of September 5, 2017 three transferable subscription rights for each share of common stock then owned (the “Rights Offering”). Each subscription right entitled the holder to purchase one-fourth of a share of common stock at a subscription price of $5.50 per whole share of common stock. The Rights Offering also included an over-subscription right, which entitled a stockholder who exercised all of their basic subscription rights in full the right to purchase additional shares of common stock that remain unsubscribed at the expiration of the Rights Offering, subject to availability, at the same $5.50 per whole share subscription price. The Company raised total gross proceeds of approximately $11,036,000, and incurred issuance costs of $242,000, which were deducted from the gross proceeds. The Company offered an aggregate of up to 2,006,598 shares of its common stock to its existing shareholders and received subscriptions for a total of 2,897,171 shares of its common stock, including 686,439 shares issued pro rata to shareholders who properly exercised over-subscription rights. The Company estimated the fair value of the subscription rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for expected volatility assumption. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term comparable to the expected term of the subscription rights. The Company estimated the fair value of the subscription rights to be approximately $10,000 at the time of original issuance. The Company then revalued the subscription rights on October 5, 2017 and October 25, 2017 at each time the rights offering was extended, and concluded that the incremental estimated fair value was de minimis. Because retained earnings are in a deficit position for the year ending December 31, 2017, this has been recorded as a debit and credit to additional paid in capital with no net impact. 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). The warrants are "European style warrants" and will only become exercisable on the earlier of (i) their expiration date, August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of the Company's common stock is greater than or equal to $15.00 (subject to adjustment). Once the warrants become exercisable, they may be exercised in accordance with the terms of the warrant agreement between the Company and the warrant agent until their expiration at 5:00 p.m., Eastern Time, on the expiration date.

H. 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, 2017, 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.

Rights Offering

Pursuant to a Registration Statement on Form S-1 (Registration No. 333-218901) under the Securities Act of 1933, as amended (the "Securities Act"), and declared effective by the SEC on September 5, 2017, the Company distributed, at no charge, to the holders of the Company’s common stock, as of September 5, 2017 three transferable subscription rights for each share of common stock then owned (the “Rights Offering”). Each subscription right entitled the holder to purchase one-fourth of a share of common stock at a subscription price of $5.50 per whole share of common stock.

The Rights Offering also included an over-subscription right, which entitled a stockholder who exercised all of their basic subscription rights in full the right to purchase additional shares of common stock that remain unsubscribed at the expiration of the Rights Offering, subject to availability, at the same $5.50 per whole share subscription price.

The Company raised total gross proceeds of approximately $11,036,000, and incurred issuance costs of $242,000, which were deducted from the gross proceeds. The Company offered an aggregate of up to 2,006,598 shares of its common stock to its existing shareholders and received subscriptions for a total of 2,897,171 shares of its common stock, including 686,439 shares issued pro rata to shareholders who properly exercised over-subscription rights.

The Company estimated the fair value of the subscription rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for expected volatility assumption. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term comparable to the expected term of the subscription rights. The Company estimated the fair value of the subscription rights to be approximately $10,000 at the time of original issuance. The Company then revalued the subscription rights on October 5, 2017 and October 25, 2017 at each time the rights offering was extended, and concluded that the incremental estimated fair value was de minimis. Because retained earnings are in a deficit position for the year ending December 31, 2017, this has been recorded as a debit and credit to additional paid in capital with no net impact.

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).

The warrants are "European style warrants" and will only become exercisable on the earlier of (i) their expiration date, August 6, 2018, and (ii) such date that the 30-day volume weighted average price per share, or VWAP, of the Company's common stock is greater than or equal to $15.00 (subject to adjustment). Once the warrants become exercisable, they may be exercised in accordance with the terms of the warrant agreement between the Company and the warrant agent until their expiration at 5:00 p.m., Eastern Time, on the expiration date.