Annual report pursuant to Section 13 and 15(d)

Income Taxes Deferred Tax Assets and Liabilities (Details)

v3.19.3.a.u2
Income Taxes Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards $ 2,000  
Deferred tax assets:    
Inventory provisions and uniform capitalization 0 $ 1
Accounts receivable allowances 8 13
Non-qualified stock option and restricted stock expense 220 184
Deferred maintenance revenue 218 101
Deferred tax asset, leasing liabilities 290 0
Deferred Tax Liabilities, Leasing Arrangements (207) 0
Loss and credit carryfowards of U.S. subsidiary 24,717 24,101
Loss carryforward of foreign subsidiary and joint venture 145 283
Deferred tax assets, excess interest expense 496 298
Other accruals and reserves 101 169
Fixed assets   3
Total deferred tax assets before valuation allowance 26,195 25,150
Less valuation allowance (25,406) (24,153)
Total deferred tax assets 789 997
Deferred tax liabilities    
Acquired intangibles (465) (901)
Deferred Tax Liabilities, Property, Plant and Equipment (26)  
Other (70) (46)
Total deferred tax liabilities (768) (944)
Total net deferred tax assets 21 $ 53
Domestic Tax Authority    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 89,200  
Tax years beginning prior to January 1, 2018 [Member] | Domestic Tax Authority    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards 85,800  
Tax years beginning prior to January 1, 2018 [Member] [Member] | Domestic Tax Authority    
Operating Loss Carryforwards [Line Items]    
Operating loss carryforwards $ 3,400