Condensed Consolidated Balance Sheets - Unaudited (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Preferred stock
Par value (in dollars per share)	$ 0.001	$ 0.001
Shares authorized (in shares)	10,000,000	10,000,000
Shares issued (in shares)	0	0
Common stock
Par value (in dollars per share)	$ 0.001	$ 0.001
Shares authorized (in shares)	100,000,000	100,000,000
Shares issued (in shares)	19,038,000	20,067,000
Shares outstanding (in shares)	19,027,000	19,783,000
Treasury stock
Common shares held (in shares)	11,000	284,000

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Face amount or stated value per share of common stock.

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