Consolidated Balance Sheets - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Series C Preferred Stock [Member]
Current liabilities:
Convertible redeemable preferred stock		$ 163,998
Series D Preferred Stock [Member]
Current liabilities:
Convertible redeemable preferred stock		858,565
Series B Preferred Stock [Member]
Stockholders’ deficit:
Series B convertible redeemable preferred stock, $0.001 par value; 0 and 467 shares issued and outstanding as of December 31, 2014 and 2013, respectively		146,224
Cash	$ 61,542	150,081
Accounts receivable, net	118,456	567,523
Other receivables		21,378
Inventory	728,372	786,636
Prepaid expenses and other current assets	280,066	317,510
Total current assets	1,188,436	1,843,128
Property and equipment, net	699	13,854
Patents, net	1,131,327	1,244,712
Other assets, net	240,478	363,711
Total assets	2,560,940	3,465,405
Accounts payable	3,345,361	4,199,511
Accrued liabilities	104,229	89,730
Deferred revenue	15,450
Accrued warranty	938,466	1,312,918
Credit facility	500,000	500,000
Capital lease obligations – current portion		299
Derivative liability – embedded conversion feature	129,598	177,927
Note payable – short-term	109,164	129,839
Convertible notes – short-term	30,000	60,000
Total current liabilities	5,172,268	6,470,224
Convertible notes	343,499	382,084
Total liabilities	5,515,767	6,852,308
Commitments and contingencies (Note 17)	0	0
Common stock, $0.001 par value; 500,000,000 shares authorized; 279,475,332 and 116,339,293 shares issued and outstanding as of December 31, 2014 and 2013, respectively	279,475	116,339
Additional paid-in capital	82,026,952	78,717,997
Accumulated deficit	(85,261,254)	(83,390,026)
Total stockholders’ deficit	(2,954,827)	(4,409,466)
Total liabilities, redeemable convertible preferred stock and stockholders’ deficit	$ 2,560,940	$ 3,465,405

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.