CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 426,039	$ 221,437
Accounts receivable, net of allowance	1,466,697	1,109,524
Inventories	6,581,848	5,980,457
Prepaid expenses	366,567	294,053
Total current assets	8,841,151	7,605,471
Property and equipment, net	8,984,094	8,678,932
Goodwill	1,492,132	1,492,132
Total assets	19,317,377	17,776,535
Current liabilities:
Accounts payable	3,092,689	2,417,803
Accrued liabilities	1,837,278	1,161,120
Customer deposits	803,150	0
Derivative liabilities	176,000	2,053,000
12% convertible promissory notes, net of discounts	1,000,000	965,838
12% revolving credit agreement, net of discounts	2,278,598	1,907,957
12% secured notes	6,394,664	1,950,000
Current portion of long term debt	189,271	187,943
Total current liabilities	15,771,650	10,643,661
8% convertible promissory notes, net of discounts	15,678,065	14,393,746
4.25% bank term loans	4,300,000	4,300,000
5% bank promissory note	4,000,000	4,000,000
Other debt	146,930	191,900
Dividends payable on 10% convertible preferred stock	169,157	143,024
Fair value of 10% convertible preferred stock warrants	121	52,720
Total liabilities	$ 40,065,923	$ 33,725,051
Commitments and contingencies
10% convertible preferred stock, no par value; authorized 880,000 shares; 682,998 shares issued and outstanding at June 30, 2015 and December 31, 2014, net of discounts	$ 6,829,980	$ 6,829,980
Stockholders' deficit:
Common stock, no par value; authorized, 250,000,000 shares; 74,065,254 and 70,825,215 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	54,387,097	52,780,363
Accumulated deficit	(81,965,623)	(75,558,859)
Total stockholders' deficit	(27,578,526)	(22,778,496)
Total liabilities and stockholders' deficit	$ 19,317,377	$ 17,776,535