Long term debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

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

	December 31,		December 31,
	2016		2015
Principal amount	$	20,000	$	10,000
Less: unamortized debt issuance costs		(609)		(402)
Long-term debt, net of unamortized debt issuance costs	$	19,391	$	9,598
Less: current portion, net of unamortized debt issuance costs		-		(3,912)
	$	19,391	$	5,686

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

Future repayments are as follows:

2017	$	-
2018		-
2019		7,500
2020		10,000
2021		2,500
Total repayments	$	20,000