Note 12 - Investments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

(in thousands)
March 31, 2018	Level 1		Level 2		Level 3		Total
Money market securities	$	16	$	—	$	—	$	16
Certificates of Deposit		523		—		—		523
Total assets	$	539	$	—	$	—	$	539
Derivative instrument payable	$	—	$	272	$	—	$	272
Contingent consideration		—		—		—		—
Total liabilities	$	—	$	272	$	—	$	272

December 31, 2017	Level 1		Level 2		Level 3		Total
Money market securities	$	16	$	—	$	—	$	16
Total assets	$	16	$	—	$	—	$	16
Derivative instrument payable	$	—	$	356	$	—	$	356
Contingent consideration		—		—		45		45
Total liabilities	$	—	$	356	$	45	$	401

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Fair Value Measurements
Using Significant Unobservable Inputs (Level 3)
(in thousands)	Contingent consideration
Balance at December 31, 2017	$	45
Payments		(45	)
Fair value adjustments		—
Balance at March 31, 2018	$	—