Stockholders' Equity and Stock Repurchase Program (Details) (USD $)	0 Months Ended	12 Months Ended
Oct. 27, 2014	Dec. 31, 2014	Dec. 31, 2013
Shareholder Equity [Line Items]
Preferred stock, shares issued (in shares)		883,000us-gaap_PreferredStockSharesIssued	883,000us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding (in shares)		883,000us-gaap_PreferredStockSharesOutstanding	883,000us-gaap_PreferredStockSharesOutstanding
Preferred stock, par value (in dollars per share)		$ 0.001	$ 0.001
Preferred Stock, value		$ 3,532,000us-gaap_PreferredStockValue	$ 3,532,000us-gaap_PreferredStockValue
Stock Repurchase Program [Abstract]
Stock repurchase program, authorized amount	5,000,000		6,000,000
Shares repurchased (in shares)		0us-gaap_TreasuryStockSharesAcquired	285,000us-gaap_TreasuryStockSharesAcquired
Average price of shares repurchased (in dollars per share)			$ 2.51
Total purchase price			716,000us-gaap_TreasuryStockValue
Amount available for future repurchase			5,300,000
Series A Preferred Stock [Member]
Shareholder Equity [Line Items]
Preferred stock, shares issued (in shares)		883,000	883,000
Preferred stock, shares outstanding (in shares)		883,000	883,000
Preferred stock, par value (in dollars per share)		$ 0.001	$ 0.001
Preferred Stock, value		$ 3,532,000	$ 3,532,000
Cumulative annual dividend rate (in hundredths)		5.00%	5.00%
Preferred stock, liquidation preference per share (in dollars per share)		$ 4	$ 4

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

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- Definition

The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

+ References

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-Publisher FASB

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

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-Publisher FASB

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- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ References

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- Definition

Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

+ References

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- Definition

Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

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- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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- Definition

The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

+ References

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