Income Taxes (Details 2) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current:
Net operating losses	$ 8,017,000	$ 6,811,000
Allowance for doubtful accounts	216,000	124,000
Inventory – IRC 263A adjustment	268,000	248,000
Stock based compensation - options and restricted stock	150,000	161,000
Capitalized engineering costs	323,000	809,000
Deferred rent	12,000	248,000
Amortization - NTW Transaction	442,000	810,000
Inventory reserves	1,000,000	942,000
Deferred gain on sale of real estate	84,000	80,000
Accrued Expenses	165,000	49,000
Disallowed interest	1,431,000	918,000
Right of Use Asset	329,000
Other		314,000
Total non-current deferred tax assets before valuation allowance	12,437,000	11,514,000
Valuation allowance	(10,663,000)	(10,135,000)
Total non-current deferred tax assets after valuation allowance	1,774,000	1,379,000
Deferred tax liabilities:
Property and equipment	(1,628,000)	(1,379,000)
Other	(146,000)
Total deferred tax liabilities	(1,774,000)	(1,379,000)
Net deferred tax asset