Note 12 - Investments and Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

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

(in thousands)
September 30, 2018	Level 1		Level 2		Level 3		Total
Money market securities	$	16	$	—	$	—	$	16
Certificates of Deposit		523		—		—		523
Convertible note receivable		—		—		500		500
Total assets	$	539	$	—	$	500	$	1,039
Derivative instrument payable	$	—	$	193	$	—	$	193
Total liabilities	$	—	$	193	$	—	$	193

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]

(in thousands)	Contingent consideration			Convertible note receivable
Balance at December 31, 2017	$	45		$	—
Purchase of convertible note receivable					500
Payments		(45	)		—
Fair value adjustments		—			—
Balance at September 30, 2018	$	—		$	500