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Stock-Based Compensation and Stock Options (Details) - Stock Options $ / shares in Units, $ in Thousands		1 Months Ended						3 Months Ended		9 Months Ended		12 Months Ended
	May 29, 2020 $ / 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, 2015 $ / shares shares	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($)	Dec. 31, 2019 shares	Dec. 31, 2015 shares
September 2015 Plan \| Mr. Ralph Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)							400,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares							$ 8.07
October 2017 Plan \| Mr. Ralph Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)						400,000							150,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares						$ 6.95
Options exercised (in shares)												250,000
September 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)		300,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares		$ 10.79
Options vested and become exercisable annually (in shares)		75,000
Total stock-based compensation expense (reversal) \| $								$ (362)		$ (523)
Unrecognized stock-based compensation expense \| $								1,400		$ 1,400
Expected duration for recognition of stock based compensation expense										2 years 10 months 24 days
Options forfeited (in shares)										100,000
September 2019 Plan \| Mr. Ralph Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares		$ 10.79
Options vested and become exercisable annually (in shares)		400,000
Total stock-based compensation expense (reversal) \| $								(382)		$ (3,900)
Unrecognized stock-based compensation expense \| $								1,900		$ 1,900
Expected duration for recognition of stock based compensation expense										1 year 2 months 12 days
September 2019 Plan \| Key Employees
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)		50,000
May 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)										100,000
Share price (in dollars per share) \| $ / shares	$ 3.49
Shares issued upon exercise of options (in shares)	300,000
May 2020 Plan \| Mr. Ralph Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)	800,000											1,900,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares	$ 3.49
Total stock-based compensation expense (reversal) \| $								(385)		$ (771)
Unrecognized stock-based compensation expense \| $								$ 2,300		2,300
Expected duration for recognition of stock based compensation expense								1 year 6 months
May 2020 Plan \| Key Employees
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)	200,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares	$ 3.49
Total stock-based compensation expense (reversal) \| $								$ (59)		(79)
Unrecognized stock-based compensation expense \| $								707		$ 707
Expected duration for recognition of stock based compensation expense										3 years 6 months
May 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)					50,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares					$ 14.70
Total stock-based compensation expense (reversal) \| $								$ 0	$ (22)	$ (34)	$ (67)
Options forfeited (in shares)										25,000
June 2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)				50,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares				$ 16.65
Total stock-based compensation expense (reversal) \| $									$ (21)	$ (43)	$ (53)
Options forfeited (in shares)										37,500
May 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)			100,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares			$ 19.28
Total stock-based compensation expense (reversal) \| $										$ (107)
Options forfeited (in shares)										75,000
Number of installments \| installment			3
Options canceled (in shares)										25,000
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
May 2019 Plan \| May 2019
Share-based Compensation Arrangement by Share-based Payment Award
Options vested (in shares)			10,000
May 2019 Plan \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Options vested and exercisable in future periods (in shares)			25,000
May 2019 Plan \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Options vested and exercisable in future periods (in shares)			25,000
May 2019 Plan \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award
Options vested and exercisable in future periods (in shares)			25,000