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Stock Options and Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares of common stock reserved for issuance (in shares)     400,000
Shares 162,892    
Compensation cost related to restricted stock grants $ 1,570    
Compensation expense recognized for restricted shares 565 $ 381  
Unrecognized compensation costs $ 600 $ 678  
Plan 2010 | Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares 65,039