NOTE 11 - SHARE-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2018

Note 11 - Share-based Compensation

Impact on operations of recording share-based compensation

	Year Ended December  31,
	2018	2017
(in thousands)
Cost of goods sold	$25	$18
Research and development	266	164
Selling, general and administrative	939	532
Total share-based compensation	$1,230	$714

Fair value of share-based awards for employee stock options

	Employee Stock
	Options
	2018	2017
Risk-free interest rates	N/A	1.72%
Volatility factors	N/A	62.00%
Expected life of the option in years	N/A	4.0
Expected dividend yield	N/A	None

Stock option grants

	2018			2017
	Options	Weighted-Average Exercise Price	Weighted-Average Remaining Contractual Life in Years	Options	Weighted-Average Exercise Price	Weighted-Average Remaining Contractual Life in Years
Outstanding at beginning of year	40,000	$6.10		376,000	$2.95
Granted	-	-		25,000	8.03
Exercised	(15,000)	2.83		(346,000)	2.83
Cancelled, Expired or
Forfeited	-	-		(15,000)	6.01
Outstanding at end of year	25,000	$8.03	4.50	40,000	$6.10	3.60
Vested or expected to vest at the end of the period	22,924	$8.03	4.50	34,460	$5.79	3.29
Exercisable at end of year	7,813	$8.03	4.50	16,563	$3.37	0.91

Restricted stock award including performance-based stock award activity under our share-based compensation plan

	2018		2017
	Awards	Weighted - Average Grant Date Fair Value	Awards	Weighted - Average Grant Date Fair Value
Outstanding at beginning of year	565,850	$5.09	464,850	$2.78
Granted	206,856	7.11	287,600	7.29
Vested	(213,100)	4.51	(181,725)	2.72
Cancelled	(750)	4.24	(4,875)	3.06
Outstanding at end of year	558,856	$6.06	565,850	$5.09

Unvested options grants and restricted stock awards

	December 31, 2018	December 31, 2017
Unamortized future compensation expense	$2,835,978	$2,560,844
Remaining weighted average amortization period in years	2.63	2.98