Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Shares	Paid in Capital	Retained Earnings (Deficit)
Balance at Dec. 31, 2011	$ 77,510,331	$ 211,417	$ 100,677,336	$ (23,378,422)
Balance, shares at Dec. 31, 2011		10,570,891
Shares issued for vested employees restricted stock units	2,671	2,671	(2,671)
Shares issued for vested employees restricted stock units, shares		133,518
Shares issued for settlement of vested director restricted stock units	1,448	1,448	(1,448)
Shares issued for settlement of vested director restricted stock units, shares	72,410	72,410
Shares issued for option exercises		116	(116)
Shares issued for option exercises, shares	8,862	5,824
Stock based compensation, net	1,329,871		1,329,871
Dividends	0
Net income (loss)	(4,283,582)			(4,283,582)
Balance at Dec. 31, 2012	74,556,620	215,652	102,002,972	(27,662,004)
Balance, shares at Dec. 31, 2012		10,782,643
Shares issued for vested employees restricted stock units	2,499	2,499	(2,499)
Shares issued for vested employees restricted stock units, shares		124,936
Shares issued for option exercises	46,437	177	46,260
Shares issued for option exercises, shares	8,862	8,862
Stock based compensation, net	670,960		670,960
Dividends	0
Net income (loss)	17,596,942			17,596,942
Balance at Dec. 31, 2013	92,870,959	218,328	102,717,693	(10,065,062)
Balance, shares at Dec. 31, 2013		10,916,441
Shares issued for vested employees restricted stock units	2,894	2,894	(2,894)
Shares issued for vested employees restricted stock units, shares		144,660
Shares issued for settlement of vested director restricted stock units	811	811	(811)
Shares issued for settlement of vested director restricted stock units, shares	40,564	40,564
Shares issued for option exercises	428,750	1,098	427,652
Shares issued for option exercises, shares	56,362	54,906
Stock based compensation, net	2,464,163		2,464,163
Dividends	(3,697,588)			(3,697,588)
Net income (loss)	4,047,122			4,047,122
Balance at Dec. 31, 2014	$ 96,113,406	$ 223,131	$ 105,605,803	$ (9,715,528)
Balance, shares at Dec. 31, 2014		11,156,571