Stockholders' Equity - Long-term incentive plan - (Details) - shares		9 Months Ended
	Feb. 11, 2019	Sep. 30, 2022
Director
Class of Stock [Line Items]
Number of shares awarded	1,500
Long-term incentive plan | Director | Restricted K shares
Class of Stock [Line Items]
Number of shares awarded	500	250
Additional number of shares awarded		250
Award vesting period		4 years
Award vesting increments percentage		25.00%
Award terms		(1) the termination of the independent director’s service as a director due to his or her death or disability, or (2) a change in control of the Company.
Number of shares issuable in future	250
Long-term incentive plan | Independent director two. | Restricted K shares
Class of Stock [Line Items]
Number of shares awarded	500
Number of shares issuable in future	250
Long-term incentive plan | Independent director three. | Restricted K shares
Class of Stock [Line Items]
Number of shares awarded	500
Number of shares issuable in future	250
Long-term incentive plan | Three independent directors | Restricted K shares
Class of Stock [Line Items]
Number of shares awarded	1,500