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SHAREHOLDERS' EQUITY (Details) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2014 Common Stock | Mar. 31, 2014 Paid-In Capital | Mar. 31, 2014 Accumulated Deficit | Mar. 31, 2014 Treasury Stock | Dec. 31, 2013 Treasury Stock
SHAREHOLDERS' EQUITY |  |  |  |  |  |  |
Common stock, shares outstanding | 24,442,014 |  | 24,442,014 |  |  |  |
Changes in shareholders equity |  |  |  |  |  |  |
Balance at the beginning of the period (in shares) | 19,820,258 |  | 19,820,258 |  |  |  |
Balance at the beginning of the period | $ 25,243,388 |  | $ 19,824 | $ 216,703,028 | $ (191,470,046) | $ (9,418) | $ (9,418)
Net loss | (3,460,037) | (4,473,447) |  |  | (3,460,037) |  |
Common stock issuance for loan principal and interest |  | 5,095,832 |  |  |  |  |
Common stock issuance for loan interest and fees (in shares) |  |  | 138,406 |  |  |  |
Common stock issuance for loan interest and fees | 363,083 |  | 138 | 362,945 |  |  |
Stock compensation expense | 116,688 |  |  | 116,688 |  |  |
Common stock issuance, net of issuance costs (in shares) |  |  | 4,483,350 |  |  |  |
Common stock issuance, net of issuance costs | 11,248,711 |  | 4,484 | 11,244,227 |  |  |
Balance at the end of the period (in shares) | 24,442,014 |  | 24,442,014 |  |  |  |
Balance at the end of the period | $ 33,511,833 |  | $ 24,446 | $ 228,426,888 | $ (194,930,083) | $ (9,418) | $ (9,418)

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