Note 8 - Debt (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Long-term Debt Instruments [Table Text Block]

	Principal Amount of 2020 Notes		Debt Discount			Debt Issue Costs			Total 2020 Notes		2020 Notes Embedded Derivative			Total 2020 Notes and 2020 Notes Embedded Derivative
Balance - December 31, 2017	$	16,657	$	(2,501	)	$	(665	)	$	13,491	$	5,224		$	18,715
Amortization of debt discount		-		252			-			252		-			252
Amortization of debt issue costs		-		-			67			67		-			67
Paid-in-kind interest		83		-			-			83		-			83
Change in fair value of 2020 Notes embedded derivative		-		-			-			-		(2,858	)		(2,858	)
Balance - March 31, 2018	$	16,740	$	(2,249	)	$	(598	)	$	13,893	$	2,366		$	16,259

	Principal Amount of 2022 Notes
Balance - December 31, 2017	$	515
Exchange of 2022 Notes		(515	)
Balance – March 31, 2018	$	—

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

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+ Details