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Deferred Compensation Plans (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Postemployment Benefits [Abstract]    
Participant's maximum compensation deferral percentage 90.00%  
Company owned life insurance $ 1,200,000 $ 966,000
Gain (loss) on company owned life insurance 99,000 (67,000)
Deferred compensation obligation $ 1,200,000 $ 992,000
Deferred restricted stock shares (in shares) 63,062 104,590
Deferred compensation arrangement with individual, shares issued (in shares) 78,771 32,037
Deferred compensation arrangement, fair value of shares issued $ 1,700,000 $ 816,373