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No definition available.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation (Details) - USD ($) $ in Thousands		12 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Thousands	May 05, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation Plans
Number of awards previously granted under prior plans remains outstanding		0
Stock-based compensation expense		$ 1,205	$ 1,368	$ 976
Restricted stock
Stock-Based Compensation Plans
Stock-based compensation expense		893	915	495
Restricted stock units
Stock-Based Compensation Plans
Stock-based compensation expense		15	122	161
Common stock awards
Stock-Based Compensation Plans
Stock-based compensation expense		$ 297	$ 331	$ 320
The 2016 Plan
Stock-Based Compensation Plans
Number of shares authorized	1,000,000
Shares available for future issuance		330,861
Option expiration term	10 years