Consolidated Statements of Shareholders' Equity (Deficit) - USD ($)	Total	Series C Convertible Preferred Stock [Member]	Series D Convertible Preferred Stock [Member]	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance at Dec. 31, 2013	$ 2,199,731	$ 1	$ 9,072	$ 637,210	$ 77,544,011	$ (75,990,563)
Balance (in shares) at Dec. 31, 2013		44,231,432	907,144	63,721,035
Stock-based Compensation Expense related to Stock Option Grants	42,574				$ 42,574
Net income (loss)	(2,892,593)					$ (2,892,593)
Balance at Dec. 31, 2014	(650,288)	$ 1	$ 9,072	$ 637,210	$ 77,586,585	$ (78,883,156)
Balance (in shares) at Dec. 31, 2014		44,231,432	907,144	63,721,035
Stock-based Compensation Expense related to Stock Option Grants	113,167				113,167
Stock option exercises	34,750			$ 6,950	$ 27,800
Stock option exercises, shares				695,000
Net income (loss)	3,044,170					$ 3,044,170
Balance at Dec. 31, 2015	$ 2,541,799	$ 1	$ 9,072	$ 644,160	$ 77,727,552	$ (75,838.986)
Balance (in shares) at Dec. 31, 2015		44,231,432	907,144	64,416,035