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Debt (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 15, 2019
USD ($)
May 11, 2018
USD ($)
Mar. 31, 2020
USD ($)
Letter
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
USD ($)
Apr. 17, 2020
USD ($)
Jan. 08, 2020
USD ($)
$ / shares
Jan. 06, 2020
USD ($)
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Jun. 28, 2019
Dec. 29, 2016
USD ($)
Line of Credit Facility [Abstract]                                      
Fixed charge coverage ratio                                   125.00%  
Leverage ratio                                 275.00%    
Number of letters of credit | Letter     4                                
Plan [Member]                                      
Line of Credit Facility [Abstract]                                      
Leverage ratio     275.00%     225.00% 225.00% 225.00% 225.00% 250.00% 250.00%       275.00% 275.00%      
LIBOR [Member]                                      
Term Loan [Abstract]                                      
Term of variable rate     1 month                                
Citizen's Bank [Member] | Revolving Credit Facility [Member]                                      
Line of Credit Facility [Abstract]                                      
Line of credit facility expiration period     3 years                                
Principal amount of the line of credit                                     $ 5,000
Line of credit facility term     5 years                                
Outstanding letter of credit balance     $ 3,500                                
Number of letters of credit | Letter     4                                
Outstanding letter of credit balance     $ 1,200                                
Line of credit facility, remaining borrowing capacity     $ 300                                
Citizen's Bank [Member] | Revolving Credit Facility [Member] | Minimum [Member]                                      
Line of Credit Facility [Abstract]                                      
Percentage of letter of credit fees per annum     1.25%                                
Citizen's Bank [Member] | Revolving Credit Facility [Member] | Maximum [Member]                                      
Line of Credit Facility [Abstract]                                      
Percentage of letter of credit fees per annum     2.00%                                
Sixth Amendment and Reaffirmation Agreement [Member]                                      
Line of Credit Facility [Abstract]                                      
EBITDA target | $ / shares                         $ 4.25            
Additional principal payable     $ 1,000                     $ 3,000          
Sixth Amendment and Reaffirmation Agreement [Member] | Plan [Member]                                      
Line of Credit Facility [Abstract]                                      
Additional principal payable                     $ 1,000                
Sixth Amendment and Reaffirmation Agreement [Member] | Minimum [Member]                                      
Line of Credit Facility [Abstract]                                      
Liquidity                         $ 5,000            
Seventh Amendment And Reaffirmation Agreement [Member] | Subsequent Event [Member]                                      
Line of Credit Facility [Abstract]                                      
Leverage ratio                       125.00%              
Additional principal payable                       $ 750              
Seventh Amendment And Reaffirmation Agreement [Member] | Plan [Member]                                      
Line of Credit Facility [Abstract]                                      
Leverage ratio       225.00% 225.00% 225.00% 225.00% 225.00% 250.00% 300.00%                  
Additional principal payable                     $ 500                
Delayed Draw Term Loan [Member] | Minimum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate     2.00%                                
Delayed Draw Term Loan [Member] | Maximum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate     2.75%                                
Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | LIBOR [Member]                                      
Term Loan [Abstract]                                      
Term of variable rate     1 month                                
Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Maximum [Member]                                      
Line of Credit Facility [Abstract]                                      
Line of credit facility expiration period     18 months                                
Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Revolving Credit Facility [Member]                                      
Line of Credit Facility [Abstract]                                      
Principal amount of the line of credit   $ 25,000                                  
DP Engineering Ltd, CO. [Member]                                      
Term Loan [Abstract]                                      
Cash purchase price $ 13,500                                    
Proceeds from issuance of debt $ 14,263                                    
DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member]                                      
Line of Credit Facility [Abstract]                                      
Line of credit facility term 5 years                                    
DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member] | Minimum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate 2.00%                                    
DP Engineering Ltd, CO. [Member] | Delayed Draw Term Loan [Member] | Maximum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate 2.75%                                    
True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member]                                      
Line of Credit Facility [Abstract]                                      
Line of credit facility term     5 years                                
Term Loan [Abstract]                                      
Proceeds from issuance of debt   10,300                                  
Repayments of debt   $ 500                                  
Debt issuance costs     $ 70                                
Loan origination fees     $ 75                                
True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | LIBOR [Member]                                      
Term Loan [Abstract]                                      
Term of variable rate     1 month                                
True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Minimum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate     2.00%                                
True North Consulting, LLC [Member] | Delayed Draw Term Loan [Member] | Citizen's Bank [Member] | Maximum [Member]                                      
Term Loan [Abstract]                                      
Debt instrument, basis spread on variable rate     2.75%