CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (6,615,996)	$ (2,744,383)	$ (11,640,375)	$ (2,723,452)
Foreign currency translation adjustment, net of income taxes	189,570	(143,198)	(54,495)	(325,621)
Comprehensive loss	(6,426,426)	(2,887,581)	(11,694,870)	(3,049,073)
Comprehensive income (loss) attributable to noncontrolling interests	48,861	21,673	(50,028)	21,673
Comprehensive loss attributable to S&W Seed Company	$ (6,475,287)	$ (2,909,254)	$ (11,644,842)	$ (3,070,746)