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Stock-Based Compensation and Stock Options (Details)			1 Months Ended					3 Months Ended		6 Months Ended		12 Months Ended
Stock-Based Compensation and Stock Options (Details)	Jun. 01, 2021 employee $ / shares shares	May 29, 2020 employee $ / shares shares	Jun. 30, 2022 USD ($) $ / shares shares	Mar. 31, 2022 $ / shares shares	Sep. 30, 2019 employee $ / shares shares	Oct. 31, 2017 $ / shares shares	Sep. 30, 2015 $ / shares shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($) shares	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($) shares	Dec. 31, 2021 shares	Dec. 31, 2020 shares	Dec. 31, 2019 shares	Dec. 31, 2015 shares
Stock Options \| 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
Stock Options \| 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
Stock Options \| 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) \| $								$ 72,000	$ 41,000	$ 145,000	$ 96,000
Unrecognized stock-based compensation expense \| $			$ 338,000					$ 338,000		$ 338,000
Expected duration for recognition of stock based compensation expense										1 year 2 months 12 days
Stock Options \| 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
Stock Options \| 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
Number of key employees \| employee					6
Stock Options \| 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										88,917	54,258
Options outstanding (in shares)			150,000					150,000		150,000
Options vested (in shares)										0
Options forfeited (in shares)												125,000	100,000
Options vested and exercisable in future periods (in shares)												150,000	75,000
Share price (in dollars per share) \| $ / shares		$ 3.49
Shares issued upon exercise of options (in shares)		300,000
Stock Options \| 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
Options outstanding (in shares)			200,000					200,000		200,000
Options vested (in shares)										200,000
Total stock-based compensation expense (reversal) \| $										$ 385,000	$ 771,000
Stock Options \| 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										24,474
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares		$ 3.49
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, number			98,000					98,000	108,000	98,000	108,000
Options outstanding (in shares)			150,000					150,000		150,000
Options vested (in shares)										50,000
Total stock-based compensation expense (reversal) \| $								$ 49,000	$ 49,000
Share-based compensation options were exercised (in shares)												50,000
Unrecognized stock-based compensation expense \| $			$ 344,000					$ 344,000		$ 344,000
Expected duration for recognition of stock based compensation expense										1 year 9 months 18 days
Number of key employees \| employee		2
Stock Options \| June 2021 Plan \| One Employee
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	$ 9.44
Options outstanding (in shares)			50,000					50,000		50,000
Options vested (in shares)										12,500
Total stock-based compensation expense (reversal) \| $								$ 36,000	$ 21,000	$ 72,000	$ 21,000
Unrecognized stock-based compensation expense \| $			$ 359,000					$ 359,000		$ 359,000
Expected duration for recognition of stock based compensation expense										2 years 6 months
Number of key employees \| employee	1
Stock Options \| March 2022 plan \| Holger Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)				600,000
Exercise price of employee option shares of common stock (in dollars per share) \| $ / shares				$ 8.14
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, number			600,000					600,000		600,000
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested, number										150,000
Total stock-based compensation expense (reversal) \| $								$ 433,000		$ 433,000
Unrecognized stock-based compensation expense \| $			$ 1,300,000					$ 1,300,000		$ 1,300,000
Expected duration for recognition of stock based compensation expense										1 year 6 months
Vesting percentage				25.00%
Stock Options \| June 2022 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			$ 6.78
Share-based compensation arrangement by share-based payment award, equity instruments other than options, nonvested, number			100,000					100,000		100,000
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested, number										100,000
Unrecognized stock-based compensation expense \| $			$ 368,000					$ 368,000		$ 368,000
Expected duration for recognition of stock based compensation expense										3 years
Employee Stock \| September 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)												800,000
Employee Stock \| October 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)								540,000				300,000
Aggregate cash proceeds \| $								$ 1,900,000
Employee Stock \| May 2019 Plan \| Mr. Ralph Bartel
Share-based Compensation Arrangement by Share-based Payment Award
Employee options granted to purchase shares of common stock (in shares)												681,902
Options exercised (in shares)												260,000