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Convertible Subordinated Notes Convertible Subordinated Notes (Liability and Equity Components) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Sep. 09, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Accumulated Amortization, Debt Issuance Costs	$ 819		$ 337
Unamortized discount of liability component	(20)
Debt Issuance Costs, Net	1,136		1,618
Convertible subordinated notes due 2021	0		5,971
Convertible subordinated notes
Debt Instrument [Line Items]
Accumulated Amortization, Debt Issuance Costs	63		130
Principal amount	2,559	$ 2,600	6,319
Unamortized discount of liability component	(20)		(319)
Debt Issuance Costs, Net	1		29
Convertible subordinated notes due 2021	2,538		5,971
Carrying value of the equity component	$ 319		$ 789

X

- Definition

Amount of accumulated amortization of debt issuance costs.

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The portion of the carrying value of convertible subordinated debt as of the balance sheet date that is scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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