Note 6 - Derivative Obligations (Tables)

6 Months Ended

Dec. 31, 2016

Notes Tables

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

	Series A
	December 31, 2016			June 30, 2016
Market price of common stock	$	3.45		$	2.93
Expected volatility		106	%		99	%
Contractual term (years)		4.2			4.7
Discount rate		1.73	%		1.01	%
Dividend rate		0	%		0	%
Exercise price	$	8.00		$	8.00

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Balance at December 31, 2016		Level 1		Level 2		Level 3
Derivative obligation	$	844	$	-	$	-	$	844

	Balance at June 30, 2016		Level 1		Level 2		Level 3
Derivative obligation	$	670	$	-	$	-	$	670

Derivative Instruments, Gain (Loss) [Table Text Block]

	Amount
Balance – July 1, 2016	$	670
Change in fair value of derivative obligation		174
Balance – December 31, 2016	$	844