Debt Instrument, Call Feature, Call Price, Percent of Principal

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- Definition

Debt Instrument, Convertible, Conversion Ratio, Principal Amount

+ References

No definition available.

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- Definition

Debt Instrument, Coupon Rate, Stated Percentage

+ References

No definition available.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

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- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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-Subparagraph (SX 210.5-02.22)

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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- Definition

Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Glossary Conversion Rate

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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Convertible Debt (Details) (USD $)	12 Months Ended
Convertible Debt (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 15, 2013
Debt Instrument [Line Items]
Convertible senior notes	$ 18,000,000	$ 18,000,000
Convertible Senior Notes, Total	18,000,000	34,900,000
Convertible senior notes, current	0	16,919,000
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Fair Value Disclosure	17,800,000	17,700,000
Convertible Senior Notes [Member] \| 2013 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				2.75%
Debt Instrument, Interest Rate, Effective Percentage		3.73%	3.64%
Contractually stated interest costs	810,000	1,289,000	1,372,000
Amortization of interest costs	43,000	398,000	501,000
Convertible Senior Notes [Member] \| 2015 Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Coupon Rate, Stated Percentage	4.50%
Debt Instrument, Convertible, Conversion Ratio	117.2333
Debt Instrument, Convertible, Conversion Ratio, Principal Amount	$ 1,000
Debt Instrument, Convertible, Conversion Price	$ 8.53
Debt Instrument, Call Feature, Call Price, Percent of Principal	100.00%
Debt Instrument, Interest Rate, Effective Percentage	4.50%	4.50%