Supplementary Cash Flow Information - (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Supplementary cash flow information for 2017, and 2016 is as follows (in thousands):

	Years Ended December 31,
	2017	2016
Cash paid for interest	256	694
Cash paid for income taxes	56	43
Non-cash operating and financing activities
Kanis S.A. notes payable plus accrued interest settled with common stock (Note 11)	—	7,900
Haldor Topsøe note payable settled with common stock (Note 11)	—	1,250
Director Note payable plus accrued interest settled with common stock (Note 11)	—	515
Issuance of common stock to placement agent in connection with equity offering (Note 12)	—	5
Issuance of warrants to placement agent in connection with equity offering (Note 12)	—	857
Accounts Payable settled with common stock	—	184