Note 4 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

	Nine Months Ended September 30 , 20 20
	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
Outstanding at beginning of period		238,470		$	17.38		7.2	$	—
Granted		295,000			2.29
Exercised		—			—
Canceled and Forfeited		(3,000	)		1.06
Expired		(500	)		30.80
Outstanding at end of period		529,970		$	9.06		8.1	$	314,880
Exercisable at end of period		114,870		$	25.20		5.3	$	—

	Nine Months Ended September 30 , 20 20
	Number of Shares			Weighted Average Grant-Date Fair Value
Unvested at beginning of period		15,000		$	2.75
Granted		60,000			2.90
Vested		(15,000	)		2.75
Forfeited		—			—
Unvested at end of period		60,000		$	2.90