Annual report pursuant to Section 13 and 15(d)

8. STOCK-BASED INCENTIVE PLANS (Details 3)

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8. STOCK-BASED INCENTIVE PLANS (Details 3) - Warrants
12 Months Ended
Dec. 31, 2019
USD ($)
$ / shares
shares
Warrants  
Outstanding at beginning of year | shares 1,098,000
Exercised | shares (67,000)
Outstanding at end of year | shares 1,031,000
Vested and exercisable at December 31, 2019 | shares 763,000
Weighted-Average Exercise Price  
Outstanding at beginning of year | $ / shares $ 9.33
Exercised | $ / shares 0.17
Outstanding at end of year | $ / shares 9.92
Vested and exercisable at December 31, 2019 | $ / shares $ 10.16
Weighted-Average Remaining Contractual Life in Years  
Outstanding at beginning of year 2 years 7 months 28 days
Outstanding at end of year 2 years 9 months 29 days
Vested and exercisable at December 31, 2019 3 years 4 months 2 days
Aggregate Intrinsic Value  
Exercised | $ $ 137,000
Outstanding at end of year | $ (7,797,000)
Vested and exercisable at December 31, 2019 | $ $ (5,952,000)