Note 9 - Share Based Compensation (Tables)

3 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Three Months Ended
	June 30, 2018			June 2 4 , 2017
Dividend yield		—			—
Expected volatility		92.55	%		—
Risk-free interest rate		2.82	%		—
Expected term (years)		8.36			—

Share-based Compensation, Stock Options, Activity [Table Text Block]

				Weighted Average		Weighted Average Remaining		Aggregate
	Shares			Exercise Price per share		Contractual Terms (Years)		Intrinsic Value
Outstanding at March 25, 2017		1,104,500		$	1.41		6.1	$	3
Granted		856,000			0.34		10.0
Forfeited / Expired		(481,800	)		1.34
Outstanding at March 31, 2018		1,478,700		$	0.56		8.0	$	—
Granted		50,000			0.27		10.0
Forfeited / Expired		(31,000	)		1.41
Outstanding at June 30, 2018		1,497,700		$	0.53		7.8	$	—
Exercisable at June 30, 2018		500,650		$	0.79		4.4	$	—
At June 30, 2018 expected to vest in the future		702,491		$	0.40		9.6	$	—

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

	Shares			Weighted Average Fair Value
Non-Vested at March 25, 2017		—		$	—
Granted		586,950			0.66
Vested		(51,000	)		(0.60	)
Forfeited or cancelled		(236,000	)		(0.68	)
Non-Vested at March 31, 2018		299,950		$	0.65
Vested		(37,500	)		(0.39	)
Non-Vested at June 30, 2018		262,450		$	0.68