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Consolidated Balance Sheets [Parenthetical] - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Cash and cash equivalents $ 563,043 $ 346,404
Allowance for doubtful accounts 137,000 126,000
Inventory, Net, Total 18,348,011 17,869,911
Prepaid expenses 678,689 1,057,464
Other current assets 530,669 991,297
Machinery and equipment 26,348,443 26,847,110
Office Furniture and Equipment 3,597,158 3,512,613
Accumulated depreciation and amortization 32,938,000 32,472,000
Goodwill 1,473,176 1,473,176
Due from related party 47,000 46,000
Trade payables 5,861,932 4,271,860
Line Of Credit, Current 11,263,531 10,952,924
Notes Payable, net of current portion, net discount 113,000 171,000
Accrued liabilities 3,127,425 2,942,481
Notes Payable - Affiliates 8,141 8,670
Notes Payable, net of non current portion, net discount $ 0 $ 113,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) $ 0 $ 0
Preferred Stock, shares authorized (in shares) 2,000,000 2,000,000
Preferred Stock, shares issued (in shares) 0 0
Preferred Stock, shares outstanding (in shares) 0 0
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0 $ 0
Common stock, shares authorized (in shares) 5,000,000 5,000,000
Common stock, shares issued (in shares) 3,568,590 3,386,284
Common stock, shares outstanding (in shares) 3,567,201 3,310,657
Treasury Stock, Shares (in shares) 75,627 75,627
Debt Issuance Costs, Net $ 62,000 $ 62,000
Variable Interest Entity, Primary Beneficiary [Member]    
Cash and cash equivalents 51,000 82,000
Allowance for doubtful accounts 6,000 4,000
Inventory, Net, Total 719,000 1,264,000
Prepaid expenses 18,000 17,000
Other current assets 0 33,000
Machinery and equipment 0 546,000
Office Furniture and Equipment 154,000 66,000
Accumulated depreciation and amortization 29,000 150,000
Goodwill 440,000 440,000
Trade payables 92,000 238,000
Line Of Credit, Current 408,000 484,000
Notes Payable, net of current portion, net discount 0 311,000
Accrued liabilities 140,000 655,000
Notes Payable - Affiliates 153,000 183,000
Notes Payable, net of non current portion, net discount $ 301,000 $ 200