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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Accounts receivable, allowance for uncollectible accounts $ 338 $ 408
Preferred Stock, par value $ 0 $ 0
Preferred Stock, shares authorized 20,000,000 20,000,000
Preferred Stock, shares outstanding 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 12,700,660 12,636,332
Treasury stock, shares 1,646,420 1,643,846