Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Compensation Cost (Details)

v3.19.2
Stock-based Compensation - Compensation Cost (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]        
Stock-based compensation expense $ 446,000 $ 468,000 $ 938,000 $ 893,000
Tax benefit from compensation expense 0 0 0 0
Cash received from option exercised $ 0 $ 0 $ 0 $ 0