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Treasury Stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended	7 Months Ended
	Aug. 07, 2018	Sep. 09, 2019	Aug. 31, 2017	Mar. 31, 2020	Mar. 31, 2020
Share Repurchase Program September 9, 2019
Equity Class Of Treasury Stock [Line Items]
Stock repurchase, shares					117,000
Common stock repurchase, value				$ 1.2	$ 1.2
Common Stock | Share Repurchase Program August 2017
Equity Class Of Treasury Stock [Line Items]
Stock approved for repurchase, value			$ 7.0
Period of stock repurchase program			12 months
Additional period of stock repurchase program	12 months
Common Stock | Share Repurchase Program September 9, 2019
Equity Class Of Treasury Stock [Line Items]
Stock approved for repurchase, value		$ 7.0
Period of stock repurchase program		12 months
Common Stock | Share Repurchase Program August 2017 and September 2019
Equity Class Of Treasury Stock [Line Items]
Stock repurchase, shares				24,000
Stock repurchase, average price per share				$ 8.03
Stock repurchase, cost				$ 0.2

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