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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Statement of Financial Position [Abstract] |  |
Accounts receivable, allowance for uncollectible accounts | $ 413 | $ 338
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 | 13,039,893 | 12,700,660
Treasury stock, shares | 1,646,420 | 1,646,420

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