Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of significant accounting policies (Policies)
Notes Tables
Notes Details

Consolidated Statements of Stockholders' Equity

v2.4.1.9

Consolidated Statements of Stockholders' Equity (USD $)	Total	Common Stock 0.001 Par Value	Additional Paid-in Capital	Accumulated Deficit	Noncontrolling Interest
Balance, beginning balance at Dec. 31, 2012	$ 4,783,035	$ 13,612	$ 16,360,821	$ (11,759,723)	$ 168,325
Beginning balance, shares at Dec. 31, 2012		13,611,974
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Sale of common stock	5,966,805tcgn_SaleOfCommonStockNetOfCosts	1,477	5,965,328		0
Sale of common stock, shares		1,476,789
Conversion of related party convertible notes to common stock	90,967	76	90,891
Conversion of related party convertible notes to common stock, shares		75,806
Conversion of accrued interest on related party convertible notes to common stock	11,280	3	11,277
Conversion of accrued interest on related party convertible notes to common stock, shares		3,131
Exercise of stock options	3,000	25	2,975
Exercise of stock options, shares		25,000
Forfeitures of restricted stock grant	(350)	(38)	(112)		(200)
Forfeitures of restricted stock grant, shares		(37,500)
Stock based compensation expense	18,367		32,816		(14,449)
Net loss	(3,807,211)us-gaap_ProfitLoss			(3,449,489)	(357,722)
Balance, ending balance at Dec. 31, 2013	7,065,893	15,155	22,463,996	(15,209,212)	(204,046)
Ending balance, shares at Dec. 31, 2013		15,155,200
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Sale of common stock	2,340,194	649	2,339,545
Sale of common stock, shares		649,106
Exercise of stock options	161,265	102	161,163
Exercise of stock options, shares		101,575
Stock based compensation expense	126,936		123,510		3,426
Net loss	(3,870,952)us-gaap_ProfitLoss			(3,745,812)	(125,140)
Balance, ending balance at Dec. 31, 2014	$ 5,823,336	$ 15,906	$ 25,088,214	$ (18,955,024)	$ (325,760)
Ending balance, shares at Dec. 31, 2014		15,905,881

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