Note 6 - Derivative Obligations (Tables)

12 Months Ended

Jun. 30, 2016

Notes Tables

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

	Series A						Series B
	August 31, 2015			June 30, 2016			August 31, 2015			February 16, 2016
Market price of common stock	$	13.60		$	2.93		$	13.60		$	4.00
Expected volatility		72	%		99	%		62	%		137	%
Contractual term (years)		5.5			4.7			1.5			1
Discount rate		1.54	%		1.01	%		0.57	%		0.5	%
Dividend rate		0	%		0	%		0	%		0	%
Exercise price	$	13.60		$	8.00		$	13.60		$	13.60

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

	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, 2015	$	--
Addition of derivative obligation at fair value on date of issuance		4,282
Reclassification of derivative obligation for exercised warrants		(58	)
Extinguishment of derivative obligation		(159	)
Change in fair value of derivative obligation		(3,395	)
Balance – June 30, 2016	$	670