Consolidated Statements of Changes in Stockholders' Equity (USD $)	Preferred Stock	Common Stock	Additional Paid-in Capital	Notes Receivable for Stock Sales	Accumulated Deficit	Total
Beginning Balance - Amount at Dec. 31, 2011	$ 26,788	$ 593,492	$ 25,635,129		$ (19,487,038)	$ 6,768,371
Beginning Balance - Shares at Dec. 31, 2011	2,678,909	59,349,300
Issuance of common stock and warrants for cash, net of offering costs, Shares		2,156,334
Issuance of common stock and warrants for cash, net of offering costs, Amount		21,563	4,603,200			4,624,763
Issuance of common stock to Directors for services: Accrued in prior year, Shares		95,835
Issuance of common stock to Directors for services: Accrued in prior year, Amount		958	229,046			230,004
Issuance of common stock to Directors for services: For current year, Shares		69,992
Issuance of common stock to Directors for services: For current year, Amount		700	220,528			221,228
Issuance of common stock for cash through exercise of warrants, Shares		225,265
Issuance of common stock for cash through exercise of warrants, Amount		2,253	57,747			60,000
Net loss					(558,536)	(558,536)
Ending Balance, Amount at Dec. 31, 2012	26,788	618,966	30,745,650		(20,045,574)	11,345,830
Ending Balance, Shares at Dec. 31, 2012	2,678,909	61,896,726
Issuance of common stock and warrants for cash, net of offering costs, Shares		1,139,480
Issuance of common stock and warrants for cash, net of offering costs, Amount		11,396	1,135,799			1,147,195
Issuance of common stock and warrants for notes payable, Shares		120,000
Issuance of common stock and warrants for notes payable, Amount		1,200	148,800			150,000
Net loss					(1,641,170)	(1,641,170)
Ending Balance, Amount at Dec. 31, 2013	26,788	631,562	32,030,249		(21,686,744)	11,001,855
Ending Balance, Shares at Dec. 31, 2013	2,678,909	63,156,206
Issuance of common stock and warrants for cash, net of offering costs, Shares		2,400,071
Issuance of common stock and warrants for cash, net of offering costs, Amount		24,001	3,046,133			3,070,134
Issuance of common stock to directors for services, Shares		83,334
Issuance of common stock to directors for services, Amount		833	149,167			150,000
Issuance of common stock and warrants for notes payable, Shares		235,717
Issuance of common stock and warrants for notes payable, Amount		2,357	327,643			330,000
Issuance of common stock to consultant for services, Shares		24,000
Issuance of common stock to consultant for services, Amount		240	38,760			39,000
Issuance of common stock for cashless exercise of warrants, Shares		3,125
Issuance of common stock for cashless exercise of warrants, Amount		31	(31)
Stock issued for notes receivable, Shares		125,000
Stock issued for notes receivable, Amount		1,250	148,750	(150,000)
Net loss					(1,595,455)	(1,595,455)
Ending Balance, Amount at Dec. 31, 2014	$ 26,788	$ 660,274	$ 35,740,671	$ (150,000)	$ (23,282,199)	$ 12,995,534
Ending Balance, Shares at Dec. 31, 2014	2,678,909	66,027,453