Note 9 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Total Stock Options Outstanding			Weighted Average Exercise Price per Share
December 31, 2021		45,468		$	14.28
Granted		—			—
Vested		—			—
Forfeited, Canceled		(2,813	)		67.00
March 31, 2022		42,655		$	10.81

Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]

	As of March 31, 2022
	Stock Options Outstanding		Vested Stock Options
Quantity		42,655		42,655
Weighted Average Exercise Price	$	10.81	$	10.81
Weighted Average Remaining Contractual Term (in Years)		2.50		2.50
Intrinsic Value	$	—	$	—