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Note 8 - Stock-based Compensation Expense

9 Months Ended

Sep. 30, 2019

Notes to Financial Statements

Share-based Payment Arrangement [Text Block]

NOTE

8:

STOCK-BASED COMPENSATION EXPENSE

The Company recorded as part of selling and general administrative expense

$99,000

and

$476,000

during the

three

and

nine

months ended

September 30, 2019,

respectively, and during the

three

and

nine

months ended

September 30, 2018,

$280,000

and

$704,000,

respectively, for the cost of employee and director services received in exchange for equity instruments based on the grant-date fair value of those instruments.