Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current Assets:
Allowance For Doubtful Receivables And Sales Returns	$ 3.9	$ 3.6
Equity:
Common Stock, par value per share	$ 0.375	$ 0.375
Common Stock, shares authorized	60,000,000	60,000,000
Common Stock, shares issued	18,455,462	18,336,010
Common Stock, shares outstanding	18,455,462	18,336,010