Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 937,672	$ 349,281
Adjustment to reconcile net income to cash (used in) provided by operating activities:
Depreciation and amortization	1,779,524	2,074,701
Amortization of debt discount	146,441	125,459
Change in value of swap agreement	0	(59,859)
Stock based compensation	29,329	77,169
Provision for losses on accounts receivable	54,863	67,195
Provision for losses on inventories	178,769	(92,100)
Deferred income taxes	(15,191)	(483,202)
Change in assets and liabilities:
Accounts receivable	(689,953)	(2,884,838)
Inventories	(972,687)	(2,768,021)
Prepaid expenses and other assets	350,158	(278,540)
Trade payables	79,473	996,802
Accrued liabilities	717,612	(479,159)
Net cash provided by (used in) operating activities	2,596,010	(3,355,112)
Cash flows from investing activities:
Cash effect from consolidation of variable interest entity	0	0
Purchases of property, plant and equipment	(681,952)	(1,174,191)
Net cash used in investing activities	(681,952)	(1,174,191)
Cash flows from financing activities:
Change in checks written in excess of bank balance	57,136	728,751
Net change in revolving line of credit	(1,205,375)	3,392,860
Repayment of long-term debt (related parties $32,000 and $49,000)	(532,198)	(505,484)
Proceeds from issuance of debt	4,951	115,803
Proceeds from issuance of stock, net	0	300,000
Proceeds from exercise of stock options and warrants	5,760	0
Dividends paid	(16,000)	(16,000)
Purchase of treasury stock	0	(19,495)
Cash paid for deferred financing fees	(8,627)	(21,500)
Net cash (used in) provided by financing activities	(1,694,353)	3,974,935
Effect of exchange rate changes on cash	(23,633)	38,084
Net increase (decrease) in cash and cash equivalents	196,072	(516,284)
Cash and cash equivalents at beginning of year	150,332	666,616
Cash and cash equivalents at end of year	346,404	150,332
Supplemental disclosure of cash flow information:
Cash payments for interest	1,235,878	1,155,461
Cash payments for taxes	0	215,000
Supplemental Disclosure of non-cash investing and financing activity
Property, Plant & Equipment acquisitions funded by liabilities	70,928	80,765
Interest accrued not paid	$ 86,663	$ 80,772