Note 7 - Note Payable (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Debt [Table Text Block]

Year Ending December 31,
2018	$	2,668
2019		2,778
2020		2,901
2021		16,672
2022		19,306
Thereafter		6,221
Total payments		50,546
Less: Amount representing interest		(20,051	)
Present value of obligations		30,495
Less: Unamortized debt discount		(1,547	)
Note payable, noncurrent portion	$	28,948