Note 9 - Share-based Compensation (Tables)

3 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Share-based Compensation Shares Authorized Available and Outstanding by Plan [Table Text Block]

	As of June 3 0 , 201 6
	Authorized		Available		Outstanding
2014 Plan		350,000		314,241		6,000
2005 Plan		—		—		662,500
2004 Directors Plan		—		—		12,000
Total		350,000		314,241		680,500

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

Option Activity	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at March 31, 2016		685,000		$	4.65		5.7	$	566,323
Granted		—		$	—
Exercised		—		$	—
Forfeited		(4,500	)	$	5.01
Outstanding at June 30, 2016		680,500		$	4.64		5.4	$	630,743
Exercisable at June 30, 2016		519,750		$	4.31		5.2	$	582,503

Schedule of Nonvested Share Activity [Table Text Block]

Nonvested Options	Shares			Weighted Average Grant-Date Fair Value
Nonvested at March 31, 2016		171,250		$	3.75
Granted		—			—
Vested		(6,000	)		1.18
Forfeited		(4,500	)		3.44
Nonvested at June 30, 2016		160,750		$	3.85

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

			Outstanding Options						Exercisable Options
Range of Exercise Prices			Number of Shares		Remaining Life (Years)		Weighted Average Price		Number of Shares		Weighted Average Price
$1.60	-	$3.70		148,220		3.8	$	2.76		148,220	$	2.76
$3.71	-	$4.42		194,780		5.2	$	3.82		167,780	$	3.82
$4.43	-	$5.40		113,000		6.7	$	5.00		69,500	$	5.07
$5.41	-	$7.08		224,500		6.2	$	6.42		134,250	$	6.25
Total stock options				680,500		5.4	$	4.64		519,750	$	4.31

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

	201 6
Exercise Price	$	5.91
Volatility		50.00	%
Risk Free Rate		0.22	%
Vesting Period (years)		0.5
Forfeiture Rate		0.00	%
Expected Life (in years)		1.00
Dividend Rate		0	%