Condensed Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2017		28,406,856
Balance at Dec. 31, 2017		$ 28	$ 169,527	$ (108,559)	$ (3,510)	$ 57,486
Cumulative effect of accounting change at Dec. 31, 2017	[1]			1,891		1,891
Balance, adjusted at Dec. 31, 2017		$ 28	169,527	(106,668)	(3,510)	$ 59,377
Common stock issued for compensation, services, and royalty payments (in shares)		122,750				122,750
Common stock issued for compensation, services, and royalty payments			329			$ 329	[2],[3]
Net loss for the period ended September 30, 2018				(9,561)		(9,561)
Other comprehensive loss					(430)	(430)
Balance (in shares) at Sep. 30, 2018		28,529,606
Balance at Sep. 30, 2018		$ 28	$ 169,856	$ (116,229)	$ (3,940)	$ 49,715

[1] Represents adjustment to accumulated deficit upon the adoption of Accounting Standards Codification Topic 606.

[2] Excludes $24 thousand of stock compensation for stock issued in 2017 that was amortized from prepaid expense in 2018.

[3] Total excludes $5 thousand of stock compensation related to royalties that were recorded as expense but not issued and outstanding as of September 30, 2018 and includes $7 thousand of stock compensation related to 2017 royalties.