Employee Stock and Benefit Plans (Equity Compensation Plans Narrative) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capital shares reserved for future issuance	100,000
Total stock-based compensation expense \| $	$ 2,881	$ 2,508
Total unrecognized compensation cost \| $	$ 2,300
Total unrecognized compensation cost, expected recognition period	2 years 10 months 24 days
Common stock, authorized	250,000,000	250,000,000
Stock reserved for future issuance	2.0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	7 years
Restricted Stock \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	2 years
Restricted Stock \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
2005 Plan \| Restricted Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Factor for increase	1.6

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