Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Compensation Cost (Details)

v3.19.1
Stock-based Compensation - Compensation Cost (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Stock-based compensation expense $ 492,000 $ 425,000
Tax benefit from compensation expense 0 0
Cash received from option exercised $ 0 $ 0