Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Accounts receivable, allowance for doubtful accounts	$ 42	$ 673
Shareholders' Equity:
Common stock, shares authorized	480,000,000us-gaap_CommonStockSharesAuthorized	480,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares, issued	126,773,097us-gaap_CommonStockSharesIssued	126,257,870us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	126,773,097us-gaap_CommonStockSharesOutstanding	126,257,870us-gaap_CommonStockSharesOutstanding

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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