Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies - Evaluation of Ability to Maintain Current Level of Operations (Details)

v3.22.2
Basis of Presentation and Significant Accounting Policies - Evaluation of Ability to Maintain Current Level of Operations (Details)
$ in Thousands
 3 Months Ended
Apr. 15, 2022
employee
Feb. 28, 2022
USD ($)
MWh
employee
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jul. 13, 2022
USD ($)
Mar. 31, 2022
USD ($)
Oct. 01, 2020
USD ($)
Net loss     $ (2,059) $ (2,182)      
Cash received (used) in operating activities     (3,442) $ (10,141)      
Cash and cash equivalents     16,914     $ 22,559  
Long-term debt     51,000        
Number of employees furloughed | employee   17          
Term of furlough   120 days          
Percentage of pay cuts for employees 15.00%            
Number of employees to whom pay cuts instituted | employee 36            
Percentage of pay cuts for members of senior leadership team 25.00%            
Rental units achieved | MWh   21.1          
Rental revenue   $ 2,800          
Senior Notes | Term Note Payable [Member]              
Long-term debt     51,000        
Senior Notes | Term Note Payable, Amended and Restated Note Purchase Agreement              
Long-term debt             $ 50,000
Subsequent Event [Member] | Senior Notes | Term Note Payable, Amended and Restated Note Purchase Agreement              
Requirements to use commercially reasonable best efforts to raise at least financing through a sale of common stock by September 14, 2022         $ 10,000    
Inventory              
Commitment to purchase inventories     $ 48,800