Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Tax Reconciliation (Details)

v3.19.1
Income Taxes Income Tax Reconciliation (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Federal statutory tax rate (percent) 21.00% 34.00% 34.00%
Expected income tax benefit $ (697,000) $ (4,107,000) $ (3,885,000)
State income taxes, net of federal tax effect 455,000 (306,000) (789,000)
Effect of deferred rate change 8,000 11,851,000 (162,000)
Foreign tax 38,000 (87,000) (105,000)
Non-deductible stock issuance costs 85,000 186,000 (24,000)
Federal R&D credit (32,000) (24,000) (17,000)
Foreign unremitted earnings 130,000 (20,000) 58,000
Change in valuation allowance 408,000 (7,764,000) 4,566,000
Refundable AMT credits (12,000) (172,000) 0
Other, net (85,000) 85,000 106,000
Income tax expense (benefit) $ 298,000 $ (358,000) $ (252,000)