Note 7 - Stock-based Compensation

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Shareholders' Equity and Share-based Payments [Text Block]

7.

    

STOCK-BASED COMPENSATION

We recorded non-cash stock compensation expense in each period as follows:

	Three-month period  ended
	March 31 ,		March 31 ,
	20 20		201 9
Stock options	$	192	$	174
Restricted stock grants		38		11
Total	$	230	$	185

We have stock options outstanding from various stock-based employee compensation plans for which we record compensation cost relating to share-based payment transactions in our financial statements. As of

March 31, 2020,

there was

$557

of total unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted average period of

1.0

year.

The following table summarizes stock option activity for the

three

-month period ended

March 31, 2020:

	Number of Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding at January 1, 2020		1,541,792		$	6.88
Granted		-			-
Exercised		(7,633	)		3.75
Forfeited or expired		(4,751	)		8.12
Outstanding at March 31, 2020		1,529,408		$	6.89		2.98	$	478
Vested and expected to vest at March 31, 2020		1,438,369		$	6.80		2.81	$	478
Exercisable at March 31, 2020		1,092,278		$	6.29		1.89	$	478

Cash received from stock option exercises under our stock-based compensation plans for the

three

-month periods ended

March 31, 2020

and

March 31, 2019

was

$29

and

$356,

respectively.

In

April 2019,

20,000

shares of restricted stock were awarded to certain of our employees at a weighted-average grant date fair value of

$11.12

per share. In

January 2018,

17,500

shares of restricted stock were awarded to certain of our employees at a weighted-average grant date fair value of

$7.16

per share. All outstanding restricted shares vest in equal annual installments over

three

years. Unrecognized compensation cost related to these restricted shares was

$107

at

March 31, 2020,

which is expected to be recognized over a weighted average period of

1.9

years.