Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Schedule of Deferred Assets (Details)

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INCOME TAXES - Schedule of Deferred Assets (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
U.S. operating loss carryforward (federal and state) $ 7,743,478 $ 9,452,111
Foreign operating loss carryforward 21,619,611 21,949,779
Total operating loss carryforward 29,363,089 31,401,890
Compensation and benefits 156,240 62,038
Warranty reserves 1,141,244 871,219
Foreign temporary differences 449,738 684,230
Definite lived intangible assets 1,822,770 1,696,965
Fixed assets 609,259 864,139
AMT credit 173,638 173,638
All other temporary differences 332,537 420,322
Total temporary differences 4,685,426 4,772,551
Deferred tax asset before valuation allowance 34,048,515 36,174,441
Valuation allowance (30,284,545) (32,586,628)
Total deferred tax asset 3,763,970 3,587,813
Deferred tax liability – intangible assets 6,627,068 5,987,789
Net deferred tax liability $ 2,863,098 $ 2,399,976