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Shareholders' Equity (Common Stock Offering) (Details) (USD $)
0 Months Ended 12 Months Ended 0 Months Ended
Jul. 13, 2012
Dec. 07, 2011
Oct. 19, 2011
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Dec. 07, 2011
Maximum [Member]
Over-Allotment Option [Member]
Oct. 19, 2011
Common Stock Purchaser Warrants [Member]
Jun. 30, 2013
Common Stock Purchaser Warrants [Member]
Mar. 31, 2013
Common Stock Purchaser Warrants [Member]
Dec. 31, 2012
Common Stock Purchaser Warrants [Member]
Sep. 30, 2012
Common Stock Purchaser Warrants [Member]
Jun. 30, 2012
Common Stock Purchaser Warrants [Member]
Mar. 31, 2012
Common Stock Purchaser Warrants [Member]
Dec. 31, 2011
Common Stock Purchaser Warrants [Member]
Dec. 07, 2011
Over Allotment Option Warrants [Member]
Dec. 07, 2011
Over Allotment Option Warrants [Member]
Maximum [Member]
Over-Allotment Option [Member]
Class of Stock [Line Items]                                  
Sale of common stock 3,626,943 317,988 2,500,000       1,027,173                    
Common stock, par value per share $ 0.001   $ 0.001 $ 0.001 $ 0.001                        
Stock issued, price per share $ 0.965   $ 0.92                            
Warrants issued, exercise price       1.38 [1] 1.38 [1] 3.69 [1]   1.058 1.049 1.049 1.049 1.049 1.058 1.058 1.058    
Warrant term               5 years                  
Number of warrants   713,601   1,957,033 1,959,799 3,819,185   650,003 [2] 650,003 [2] 650,003 [2] 650,003 [2] 650,003 [2] 650,003 [2] 650,003 [2] 650,003 [2] 63,598 205,435
Gross cash proceeds   $ 292,549 $ 2,300,000   $ 2,592,549                        
Underwriting costs   (15,696) [3] (140,087) [3]   (155,783) [3]                        
Legal costs   (14,230) (100,050)   (114,280)                        
Other costs   (1,500) (46,500)   (48,000)                        
Net cash proceeds $ 3,291,977 $ 261,123 $ 2,013,363 $ 3,291,977 $ 2,274,486                        
[1] Weighted average exercise price per share.
[2] Quantity of warrants either issued or outstanding as of the date of valuation.
[3] Underwriting costs include commissions paid directly to the underwriter and underwriting fees.