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CONSOLIDATED CONDENSED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Accounts receivable, reserves	$ 945,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent	$ 1,523,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Stockholders' deficit:
Preferred stock, par value (in dollars per share)	$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized (in shares)	5,000,000us-gaap_PreferredStockSharesAuthorized
Common stock, par value (in dollars per share)	$ 0.001us-gaap_CommonStockParOrStatedValuePerShare	$ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized (in shares)	290,000,000us-gaap_CommonStockSharesAuthorized	290,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares)	114,097,357us-gaap_CommonStockSharesIssued	99,348,377us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	114,097,357us-gaap_CommonStockSharesOutstanding	99,348,377us-gaap_CommonStockSharesOutstanding
Series A Preferred Stock [Member]
Stockholders' deficit:
Convertible preferred stock (in hundredths)	3.60%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember	3.60%us-gaap_PreferredStockDividendRatePercentage / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred stock, par value (in dollars per share)	$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember	$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred stock, shares authorized (in shares)	5,000,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember	5,000,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred stock, shares issued (in shares)	13,500us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember	13,500us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred stock, shares outstanding (in shares)	325us-gaap_PreferredStockSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember	5,311us-gaap_PreferredStockSharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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