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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

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