XML 123 R77.htm IDEA: XBRL DOCUMENT v3.20.2
Segment Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Revenue, Major Customer [Line Items]      
Revenue from contracts with customers: $ 12,558 $ 14,277 $ 19,166
Operating income (loss): 747 (755) 1,938
Depreciation expense: 145 261 319
Capital expenditure: 91 695 271
Total assets: 18,169 15,250  
Property, plant and equipment 878 886  
Metal Stamping and Mechanical OEM [Member]      
Revenue, Major Customer [Line Items]      
Revenue from contracts with customers: 6,929 7,717 9,638
Operating income (loss): 458 (405) 955
Depreciation expense: 83 133 160
Capital expenditure: 53 398 136
Total assets: 9,753 8,084  
Property, plant and equipment 520 513  
Electric OEM [Member]      
Revenue, Major Customer [Line Items]      
Revenue from contracts with customers: 5,629 6,560 9,528
Operating income (loss): 355 (250) 1,123
Depreciation expense: 62 128 1,938
Capital expenditure: 38 297 135
Total assets: 8,248 7,000  
Property, plant and equipment 358 373  
Corporate [Member]      
Revenue, Major Customer [Line Items]      
Operating income (loss): (66) (100) $ (140)
Total assets: $ 168 $ 166