Common Stock	12 Months Ended
Jun. 30, 2019
Equity [Abstract]
COMMON STOCK	Note 9 – COMMON STOCK On May 1, 2018, the Company affected the 1 for 3 reverse stock split of the Company's issued and outstanding Common Stock, decreasing the number of outstanding shares from 57,511,771 to 19,170,846 These financial statements have been retroactively adjusted to reflect this reverse split. On July 14, 2017, the Company entered into subscription agreements with investors and sold 95,334 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $672,100 from sale of Common Stock. On August 21, 2017, the Company entered into subscription agreements with investors and sold 118,500 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $835,425 from sale of Common Stock. On September 21, 2017, the Company entered into subscription agreements with investors and sold 86,666 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $611,000 from sale of Common Stock. On August 22, 2018, the Company's Board of Directors and majority stockholders adopted the 2018 Equity Incentive Plan (the "2018 Plan") for the Company to award up to a maximum of 4,000,000 shares of its Common Stock, to attract and retain the best available personnel, provide additional incentives to employees, directors and consultants and promote the success of its business. No awards have been granted under the 2018 Plan as of the date of this report, but the Company's Board of Directors or a designated committee thereof will have the ability in its discretion from time to time to make awards under the 2018 Plan, including to its officers and directors of the Company. During September, 2018, the Company sold 84,000 shares of Common Stock to third party investors at RMB 20 (approximately $2.94) per share and received proceeds of RMB 1,680,000 (approximately $244,666). During November, 2018, the Company sold 21,500 shares of Common Stock to third party investors at $2.92 per share and received proceeds of $62,780. On December 21, 2018, the Company successfully completed a registered, underwritten initial public offering and concurrent listing of the Company's Common Stock on the NASDAQ Capital Market, which offering generated gross proceeds of $6.7 million before deducting underwriter's commissions and other offering costs, resulting in net proceeds of approximately $5.7 million, of which $1,000,000 was placed in an escrow account. The escrow fund is being held and disbursed by the escrow agent pursuant to the terms and conditions of a certain Indemnification Escrow Agreement between the Company and the underwriter of the offering. $400,000 of the escrow fund was disbursed to the Company in February 2019 when the underwriter confirmed receipt of a written legal opinion from PRC legal counsel in connection with such offering. The Company sold 1,667,500 shares of Common Stock (including shares issued pursuant to the underwriter's over-allotment option) at an offering price of $4 per share. The Company's Common Stock began trading on the NASDAQ Capital Market beginning on December 19, 2018 under the symbol "DTSS." In addition, the Company issued warrants to the representative of the underwriters to purchase 101,500 shares of Common Stock at an exercise price of $6 per share. These warrants may be purchased in cash or via cashless exercise, will be exercisable for five years from December 21, 2018 through December 17, 2023.

Common Stock

12 Months Ended

Jun. 30, 2019

Note 9 – COMMON STOCK

On May 1, 2018, the Company affected the 1 for 3 reverse stock split of the Company's issued and outstanding Common Stock, decreasing the number of outstanding shares from 57,511,771 to 19,170,846 These financial statements have been retroactively adjusted to reflect this reverse split.

On July 14, 2017, the Company entered into subscription agreements with investors and sold 95,334 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $672,100 from sale of Common Stock.

On August 21, 2017, the Company entered into subscription agreements with investors and sold 118,500 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $835,425 from sale of Common Stock.

On September 21, 2017, the Company entered into subscription agreements with investors and sold 86,666 shares of the Company's Common Stock at $7.05 per share. The Company received the proceeds of $611,000 from sale of Common Stock.

On August 22, 2018, the Company's Board of Directors and majority stockholders adopted the 2018 Equity Incentive Plan (the "2018 Plan") for the Company to award up to a maximum of 4,000,000 shares of its Common Stock, to attract and retain the best available personnel, provide additional incentives to employees, directors and consultants and promote the success of its business. No awards have been granted under the 2018 Plan as of the date of this report, but the Company's Board of Directors or a designated committee thereof will have the ability in its discretion from time to time to make awards under the 2018 Plan, including to its officers and directors of the Company.

During September, 2018, the Company sold 84,000 shares of Common Stock to third party investors at RMB 20 (approximately $2.94) per share and received proceeds of RMB 1,680,000 (approximately $244,666).

During November, 2018, the Company sold 21,500 shares of Common Stock to third party investors at $2.92 per share and received proceeds of $62,780.

On December 21, 2018, the Company successfully completed a registered, underwritten initial public offering and concurrent listing of the Company's Common Stock on the NASDAQ Capital Market, which offering generated gross proceeds of $6.7 million before deducting underwriter's commissions and other offering costs, resulting in net proceeds of approximately $5.7 million, of which $1,000,000 was placed in an escrow account. The escrow fund is being held and disbursed by the escrow agent pursuant to the terms and conditions of a certain Indemnification Escrow Agreement between the Company and the underwriter of the offering. $400,000 of the escrow fund was disbursed to the Company in February 2019 when the underwriter confirmed receipt of a written legal opinion from PRC legal counsel in connection with such offering. The Company sold 1,667,500 shares of Common Stock (including shares issued pursuant to the underwriter's over-allotment option) at an offering price of $4 per share. The Company's Common Stock began trading on the NASDAQ Capital Market beginning on December 19, 2018 under the symbol "DTSS."

In addition, the Company issued warrants to the representative of the underwriters to purchase 101,500 shares of Common Stock at an exercise price of $6 per share. These warrants may be purchased in cash or via cashless exercise, will be exercisable for five years from December 21, 2018 through December 17, 2023.