Note 11 - Stock Options and Restricted Stock (Tables)

6 Months Ended

Jun. 30, 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		8,635		5.98		-
Outstanding at June 30, 2021		2,934	$	5.55		0.92
Vested at June 30, 2021		2,934	$	5.55		0.92
Exercisable at June 30, 2021		2,934	$	5.55		0.92

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		(5,673	)		8.11
Forfeited		(1,223	)		9.99
Restricted shares at June 30, 2021		182,497		$	1.61

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Stock options		3,471		103,503		4,845		110,840
Restricted stock		1,193,887		43,667		1,159,082		43,667
Warrants		184,150		67,799		177,282		90,983
Weighted average		1,381,508		214,969		1,341,209		245,489