Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Face amount or stated value per share of common stock.

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Unrecognized cost of unvested share-based compensation awards.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Stock Options and Restricted Stock Units (Narrative) (Details) (USD $)	12 Months Ended		0 Months Ended		1 Months Ended	0 Months Ended		126 Months Ended	102 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Oct. 25, 2011	Dec. 18, 2014	Jan. 31, 2014	Dec. 10, 2014	Sep. 24, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2012	Jun. 21, 2004	Jun. 27, 2006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted
Common stock, par value per share	$ 0.01	$ 0.01						0.01	0.01
Exercise price
Options exercised
Options outstanding	5,030,000	5,347,500						5,030,000	5,030,000	5,372,500
Stock-based compensation expense	$ 148,500	$ 0
Closing price, share	$ 1.22us-gaap_SharePrice							1.22us-gaap_SharePrice	1.22us-gaap_SharePrice
Unearned stock-based compensation to be expensed in future periods related to unvested stock-based awards	72,773							72,773	72,773
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued upon vesting of restricted stock	75,000
NTR [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payables forgiven			$ 2,500,000
Options granted			5,000,000
Common stock, par value per share			$ 0.01
Exercise price			$ 15
Chief Executive Officer [Member] \| Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued upon vesting of restricted stock				75,000
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted	229,600
RSUs [Member] \| Management and Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted					112,000
RSUs [Member] \| Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted						75,000
RSUs [Member] \| Three Independent Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted							42,600
2004 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance											1,700,000
Options granted								1,459,634
Options exercised								845,634
Options expired								594,000
Options outstanding	20,000							20,000	20,000
2006 Equity Inventive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance												750,000
Options granted									150,000
Options exercised									100,000
Options expired									40,000
Options outstanding	10,000							10,000	10,000
2006 Equity Inventive Plan [Member] \| RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance	449,400							449,400	449,400