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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Accumulated depreciation | $ 18,651 | $ 18,557
Accumulated amortization, intangible assets | $ 437 | $ 406
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares authorized (in shares) | 40,000,000 | 40,000,000
Common stock, shares issued (in shares) | 31,361,303 | 31,272,303
Common stock, shares outstanding (in shares) | 30,385,297 | 30,296,297

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