Note 10 - Stock Options and Restricted Stock (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at December 31 , 2020		11,569		$	5.87		0.53
Forfeited or Expired		(6,667	)		5.55		-
Outstanding at March 31 , 2021		4,902		$	6.31		0.94
Vested at March 31, 2021		4,902		$	6.31		0.94
Exercisable at March 31, 2021		4,902		$	6.31		0.94

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

	Number of Shares			Weighted-Average Grant- Date Fair Value
Restricted shares at December 31, 2020		24,393		$	7.32
Granted		165,000			1.05
Vested		(3,667	)		7.05
Forfeited		(1,223	)		9.99
Restricted shares at March 31, 2021		184,503		$	1.70

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended March 31,
	2021		2020
Stock options		6,235		118,143
Restricted stock		170,338		112,531
Warrants		1,123,890		43,667
Weighted average		1,300,463		274,341