Note 5 - Accrued Liabilities - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Accrued sales commission	$ 1,550		$ 1,067
Accrued professional fees	762		562
Accrued interest	662		447
Accrued bonuses	613		1,597
Accrued payroll and other related expenses	521		488
Travel and entertainment	272		156
Customer contracts liabilities	182
Accrued sales & use tax	161		149
Other accruals	535		139
Total accrued liabilities	$ 5,258	$ 4,623	$ 4,605	[1]

[1] The condensed consolidated balance sheet as of December 31, 2017 has been derived from the audited consolidated financial statements as of that date.