Quarterly report pursuant to Section 13 or 15(d)

Accounting Standards (Details)

v3.10.0.1
Accounting Standards (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Costs and estimated earnings in excess of billings on uncompleted contracts $ 10,192   $ 9,334
Inventories 28,538   24,556
Accrued expenses and other liabilities 12,118   17,520
Billings in excess of costs and estimated earnings on uncompleted contracts 39,471   $ 38,738
Revenues 154,327 $ 150,421  
Cost of revenues 133,199 127,623  
Provision (benefit) for income taxes 1,651 (797)  
Net income 5,154 $ 10,996  
Impact of ASC 606 | Accounting Standards Update 2014-09      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Costs and estimated earnings in excess of billings on uncompleted contracts (1,060)    
Inventories 1,604    
Accrued expenses and other liabilities (41)    
Billings in excess of costs and estimated earnings on uncompleted contracts 705    
Revenues (1,765)    
Cost of revenues (1,604)    
Provision (benefit) for income taxes (41)    
Net income (120)    
Without Application of ASC 606      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Costs and estimated earnings in excess of billings on uncompleted contracts 11,252    
Inventories 26,934    
Accrued expenses and other liabilities 12,159    
Billings in excess of costs and estimated earnings on uncompleted contracts 38,766    
Revenues 156,092    
Cost of revenues 134,803    
Provision (benefit) for income taxes 1,692    
Net income $ 5,274