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Equity Transactions and Stock-Based Compensation Plans (Schedule of Assumptions Used for Stock Options Granted) (Details) - Stock Options [Member] - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected volatility     64.00% 66.00%
Risk-free interest rates     1.40% 1.70%
Expected life in years     5 years 6 months 7 days 5 years 5 months 27 days
Options granted 0 0 341,638 221,440
Nonvested Options, Grants in Period, Weighted Average Grant Date Price     $ 2.31 $ 4.87