CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenue
Total revenue	$ 12,353,100	$ 18,580,996	$ 24,625,557	$ 44,701,133
Revenue from Contract with Customer, Product and Service [Extensible List]	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember
Cost of revenue
Total cost of revenue	$ 10,160,727	$ 13,897,455	$ 19,360,313	$ 34,554,463
Type of Cost, Good or Service [Extensible List]	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember	sanw:SeedMillingAndResearchAndDevelopmentServicesMember
Gross profit	$ 2,192,373	$ 4,683,541	$ 5,265,244	$ 10,146,670
Operating expenses
Selling, general and administrative expenses	5,119,598	4,342,696	9,767,924	7,230,074
Research and development expenses	1,671,873	1,373,554	3,260,064	2,365,667
Depreciation and amortization	1,346,004	1,035,606	2,410,802	1,890,714
(Gain) loss on disposal of property, plant and equipment	(1,500)	3,463	(13,075)	3,463
Total operating expenses	8,135,975	6,755,319	15,425,715	11,489,918
Loss from operations	(5,943,602)	(2,071,778)	(10,160,471)	(1,343,248)
Other expense
Foreign currency gain	(112,363)	(32,987)	(14,176)	(58,430)
Change in estimated value of assets held for sale	7,238		92,931
Loss on extinguishment of debt	140,638		140,638	0
Interest expense - amortization of debt discount	111,810	68,914	297,712	135,392
Interest expense	501,781	641,479	938,279	1,298,709
Loss before income taxes	(6,592,706)	(2,749,184)	(11,615,855)	(2,718,919)
Provision for income taxes	23,290	(4,801)	24,520	4,533
Net loss	(6,615,996)	(2,744,383)	(11,640,375)	(2,723,452)
Net income (loss) attributed to noncontrolling interests	48,861	21,673	(50,028)	21,673
Net loss attributable to S&W Seed Company	$ (6,664,857)	$ (2,766,056)	$ (11,590,347)	$ (2,745,125)
Net loss attributable to S&W Seed Company per common share:
Basic	$ (0.20)	$ (0.09)	$ (0.35)	$ (0.10)
Diluted	$ (0.20)	$ (0.09)	$ (0.35)	$ (0.10)
Weighted average number of common shares outstanding:
Basic	33,301,578	29,153,852	33,294,344	26,996,483
Diluted	33,301,578	29,153,852	33,294,344	26,996,483