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Stock-Based Compensation Plans (Details Narrative)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Years
$ / shares
shares
Number of stock option plans 2
Options expire from date of grant 10 years
Exercisable installments Immediate or 20% or 25%
Shares available for future issuance | shares 443,820
Aggregate intrinsic value of exercisable in-the-money options $ 1,131
Aggregate intrinsic value of outstanding in-the-money options $ 1,148
Market close price | $ / shares $ 40.58
Total unrecognized compensation cost of options granted but not yet vested $ 243
Compensation cost not yet vested recognition period 3 years 3 months 20 days
Expected minimum volatility 29.00%
Expected maximum volatility 41.00%
Risk-free interest rate minimum 1.00%
Risk-free interest rate maximum 2.90%
Expected life minimum | Years 3
Expecited life maximum | Years 7
Dividend yield 0.00%
Restricted Stock [Member]  
Total unrecognized compensation cost of options granted but not yet vested $ 856
Compensation cost not yet vested recognition period 3 years 10 months 29 days
Shares granted | shares 20,520
Vesting period 5 years
Option Grant [Member]  
Shares granted | shares 11,448