Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Stock Options and Stock-Based Compensation - Summary of Restricted Stock Granted (Details) - Plan 2010 - Restricted Stock - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares	65,039
Remaining Term (In Years)	1 year 3 months 18 days
2015 \| Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)					5 years
Shares					8,904
Remaining Term (In Years)					6 days
2016 \| Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)				5 years
Shares				10,874
Remaining Term (In Years)				1 year 1 month 6 days
2017 \| Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)			3 years
Shares			4,602
Remaining Term (In Years)			3 days
2017 \| Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)			5 years
Shares			7,017
Remaining Term (In Years)			2 years 1 month 6 days
2018 \| Two Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)		2 years
Shares		932
Remaining Term (In Years)		3 days
2018 \| Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)		3 years
Shares		5,371
Remaining Term (In Years)		1 year 1 month 6 days
2018 \| Four Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)		4 years
Shares		2,068
Remaining Term (In Years)		2 years
2018 \| Five Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)		5 years
Shares		6,184
Remaining Term (In Years)		3 years
2019 \| One Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	1 year
Shares	1,349
Remaining Term (In Years)	3 days
2019 \| Two Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	2 years
Shares	1,484
Remaining Term (In Years)	1 year 1 month 6 days
2019 \| Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Term (In Years)	3 years
Shares	16,254
Remaining Term (In Years)	2 years 1 month 6 days