Compensation Plans - Changes in Outstanding Stock Options (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Options Outstanding
Beginning Balance (in shares)	81,667
Granted (in shares)	0
Exercised (in shares)	0
Cancelled (in shares)	0
Expired (in shares)	0
Ending Balance (in shares)	81,667	81,667
Weighted Average Exercise Price (in dollars per share)
Beginning Balance (in dollars per share)	$ 99.00
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Cancelled (in dollars per share)	0
Expired (in dollars per share)	0
Ending Balance (in dollars per share)	$ 99.00	$ 99.00
Weighted Average Remaining Contractual Term (in Years)
Weighted Average Remaining Contractual Term (in Years)	7 years 10 months 24 days	8 years 1 month 6 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value	$ 0	$ 0