Stockholders' Equity - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	2 Months Ended		3 Months Ended	12 Months Ended		1 Months Ended										2 Months Ended	1 Months Ended
	Nov. 10, 2014	Dec. 31, 2013	Sep. 30, 2014	Jul. 31, 2014	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2014	Nov. 30, 2014	Oct. 31, 2014	Apr. 30, 2014	May 31, 2013	Mar. 31, 2013	Jul. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Nov. 30, 2014	Feb. 28, 2013	Nov. 19, 2013	Nov. 18, 2013	Dec. 31, 2011
Stockholders Equity Note [Line Items]
Common stock, authorized		250,000,000				250,000,000	250,000,000
Preferred stock, authorized						2,500,000
Common stock, shares issued		31,168,905				70,825,215	31,168,905
Shares issued for dividend payments						$ 679,575	$ 533,569
Stock issued during period value interest payments						1,532,252	541,515
Stock issued during period shares stock options exercised		300				186,225	2,500
Stock Issued During Period, Shares, Issued for Services						357,561
Debt Conversion, Converted Instrument, Amount				4,866,269
Common Stock Shares Outstanding		31,168,905				70,825,215	31,168,905
Debt Conversion, Converted Instrument, Shares Issued			116,250
Stock Issued During Period, Shares, Conversion Of Convertible Securities	1,701,341
Short Swing Profits Less Legal Fees					3,100,000	5,000,000
Share Based Compensation Arrangement By Share Based Payment Award Cashless Exercise Of Options		2,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		2,200
Stock Option | Warrant
Stockholders Equity Note [Line Items]
Stock issued during period shares stock options exercised								107,461
Share Based Compensation Arrangement By Share Based Payment Award Cashless Exercise Of Options And Warrants								341,793
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value								257,219
12% Revolving credit agreement
Stockholders Equity Note [Line Items]
Stock issued during period shares interest payments								8,522		82,706
Stock issued during period value interest payments								8,522		38,045	37,314
Stock issued during period shares stock options exercised									108,368
Stock Issued During Period, Value, Issued for Services								140,894
Stock Issued During Period, Shares, Issued for Services								220,147	240,817
Maximum
Stockholders Equity Note [Line Items]
Common stock, authorized																				250,000,000
Maximum | Warrant
Stockholders Equity Note [Line Items]
Stock Issued During Period, Value, Issued for Services				24,824,069
Stock Issued During Period, Shares, Issued for Services				35,462,955
Minimum [Member]
Stockholders Equity Note [Line Items]
Common stock, authorized																					100,000,000
General and Administrative Expense
Stockholders Equity Note [Line Items]
Stock issued during period shares stock options exercised												61,000
Stock Issued During Period, Value, Issued for Services													78,750
Stock Issued During Period, Shares, Issued for Services												100,000	125,000
8% Convertible promissory note
Stockholders Equity Note [Line Items]
Stock issued during period shares interest payments								235,853			359,300			507,483	355,903	369,040	252,639
Stock issued during period value interest payments								235,853			265,882			340,014	181,510	188,210	171,795
8% Convertible promissory note | Stock Option
Stockholders Equity Note [Line Items]
Stock issued during period shares interest payments										687,614
Stock issued during period value interest payments										316,302
12% Revolving credit agreement
Stockholders Equity Note [Line Items]
Stock issued during period shares interest payments											50,424
Stock Issued During Period, Value, Issued for Services														41,058
Stock Issued During Period, Shares, Issued for Services														61,280
Consulting Services
Stockholders Equity Note [Line Items]
Stock Issued During Period, Value, Issued for Services											100,000							149,084
Stock Issued During Period, Shares, Issued for Services											196,079							316,079
Consulting Services | General and Administrative Expense
Stockholders Equity Note [Line Items]
Stock Issued During Period, Value, Issued for Services		76,500
Stock Issued During Period, Shares, Issued for Services		75,000
10% Convertible Preferred Stock
Stockholders Equity Note [Line Items]
10% Convertible preferred stock, authorized		880,000				880,000	880,000															880,000
10% Convertible preferred stock, outstanding		694,623				682,998	694,623
Common stock dividends, shares								181,531		330,949	215,942			274,918	347,039	342,857	266,954
Shares issued for dividend payments								183,346		152,237	159,797			184,195	176,990	175,050	181,529
Debt Conversion, Converted Instrument, Amount			116,250
Debt Conversion, Converted Instrument, Shares Issued						11,625
Stock Issued During Period, Shares, Conversion Of Convertible Securities		75,000																	39,000
Conversion Of Stock Shares Converted 1		7,500				11,625	11,400												3,900
Stock Issued During Period, Value, Conversion of Convertible Securities		$ 75,000				$ 116,250	$ 114,000												$ 39,000