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Number of options vested.

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Stock-Based Compensation and Stock Options - Narrative (Details) $ / shares in Units, $ in Thousands			1 Months Ended							12 Months Ended
	Jun. 01, 2021 USD ($) employee $ / shares shares	May 29, 2020 employee $ / shares shares	Sep. 30, 2019 $ / shares shares	May 31, 2019 installment $ / shares shares	Jun. 30, 2018 $ / shares shares	May 31, 2018 $ / shares shares	Oct. 31, 2017 $ / shares shares	Sep. 30, 2017 shares	Sep. 30, 2015 $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 shares	Sep. 30, 2020 employee
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)										50,000	2,850,000
Exercise Price (in dollars per share) \| $ / shares	$ 9.44									$ 9.44	$ 3.49
Options exercised (in shares)										2,160,000	75,000
Options forfeited (in shares)										125,000	200,000
Number of key employees \| employee	1
Unrecognized stock-based compensation expense \| $	$ 431
Unrecognized compensation expense, period for recognition (in years)	3 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)	50,000
Options forfeited (in shares)											12,500
Unrecognized stock-based compensation expense \| $										$ 1,700
Unrecognized compensation expense, period for recognition (in years)										1 year 4 months 24 days
Allocated share-based compensation expense \| $										$ 3,700
Stock Options \| General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award
Allocated share-based compensation expense \| $											$ 6,200
Stock Options \| September 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)			300,000
Exercise Price (in dollars per share) \| $ / shares			$ 10.79
Options vest and become exercisable annually (in shares)			75,000
Unrecognized stock-based compensation expense \| $										$ 483
Unrecognized compensation expense, period for recognition (in years)										1 year 8 months 12 days
Stock Options \| May 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)											100,000
Shares issued (in shares)		300,000
Stock Options \| May 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)				100,000
Exercise Price (in dollars per share) \| $ / shares				$ 19.28
Options forfeited (in shares)											75,000
Vesting installments \| installment				3
Options canceled (in shares)											25,000
Stock Options \| May 2019 Plan \| May 2019
Share-based Compensation Arrangement by Share-based Payment Award
Options vested (in shares)				10,000
Stock Options \| May 2019 Plan \| September 2019
Share-based Compensation Arrangement by Share-based Payment Award
Options vested and exercisable in future periods (in shares)				15,000
Stock Options \| May 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)						50,000
Exercise Price (in dollars per share) \| $ / shares						$ 14.70
Options forfeited (in shares)											25,000
Stock Options \| June 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)					50,000
Exercise Price (in dollars per share) \| $ / shares					$ 16.65
Options forfeited (in shares)											37,500
Stock Options \| Mr. Ralph Bartel \| September 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)									400,000
Exercise Price (in dollars per share) \| $ / shares									$ 8.07
Stock Options \| Mr. Ralph Bartel \| October 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)							400,000	150,000		150,000
Exercise Price (in dollars per share) \| $ / shares							$ 6.95
Options exercised (in shares)												250,000
Stock Options \| Mr. Ralph Bartel \| September 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Exercise Price (in dollars per share) \| $ / shares			$ 10.79
Options vest and become exercisable annually (in shares)			400,000
Stock Options \| Mr. Ralph Bartel \| May 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)		800,000								390,809		1,900,000
Share-based compensation options were exercised (in shares)										600,000
Unrecognized stock-based compensation expense \| $										$ 385
Unrecognized compensation expense, period for recognition (in years)										3 months
Stock Options \| Key Employees \| September 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)			50,000
Number of key employees \| employee													6
Stock Options \| Key Employees \| May 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)		200,000								24,474
Exercise Price (in dollars per share) \| $ / shares		$ 3.49
Number of key employees \| employee		2
Share-based compensation options were exercised (in shares)										50,000
Unrecognized stock-based compensation expense \| $										$ 442
Unrecognized compensation expense, period for recognition (in years)										2 years 3 months 18 days
Employee Stock \| September 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)										800,000
Employee Stock \| October 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)										300,000
Employee Stock \| May 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)										88,917	54,258
Options forfeited (in shares)										125,000
Options vested and exercisable in future periods (in shares)											75,000
Share-based compensation options were exercised (in shares)										150,000
Employee Stock \| Mr. Ralph Bartel \| May 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Options granted (in shares)										681,902
Options exercised (in shares)										260,000