Capital Transactions - Information About Stock Options Outstanding (Details) - Employee stock options	12 Months Ended
	Dec. 31, 2019 $ / shares shares
$13.00 to $13.99
Stock options, exercise price
Exercise price range, low end of range (in dollars per share)	$ 13.00
Exercise price range, high end of range (in dollars per share)	$ 13.99
Options Outstanding
Number of options outstanding (in shares) | shares	2,034
Options outstanding, Weighted Average Remaining Contractual Life	2 years 1 month 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 13.51
Options Exercisable
Number of options Exercisable (in shares) | shares	2,034
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 13.51
$14.00 to $15.00
Stock options, exercise price
Exercise price range, low end of range (in dollars per share)	14.00
Exercise price range, high end of range (in dollars per share)	$ 15.00
Options Outstanding
Number of options outstanding (in shares) | shares	58,197
Options outstanding, Weighted Average Remaining Contractual Life	3 years 1 month 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 14.78
Options Exercisable
Number of options Exercisable (in shares) | shares	58,197
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 14.78
$13.00 to $15.00
Stock options, exercise price
Exercise price range, low end of range (in dollars per share)	13.00
Exercise price range, high end of range (in dollars per share)	$ 15.00
Options Outstanding
Number of options outstanding (in shares) | shares	60,231
Options outstanding, Weighted Average Remaining Contractual Life	3 years 1 month 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 14.74
Options Exercisable
Number of options Exercisable (in shares) | shares	60,231
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 14.74