Annual report pursuant to Section 13 and 15(d)

Income Taxes - Deferred Tax Assets and Liabilities (Details)

v3.19.2
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Mar. 31, 2018
Deferred tax assets:    
Inventories $ 1,842 $ 1,893
Warranty reserve 630 402
Bad debt reserve 1,245 1,373
Deferred revenue 1,584 1,108
Net operating loss (NOL) carryforwards 145,835 148,405
Tax credit carryforwards 16,021 16,627
Depreciation, amortization and impairment loss 2,734 2,673
Other 1,726 1,271
Deferred tax assets 171,617 173,752
Valuation allowance for deferred tax assets (171,617) (173,752)
Deferred tax assets, net of valuation allowance 0 0
Deferred tax liabilities:    
Federal benefit of state taxes 0 0
Net deferred tax assets $ 0 $ 0