Note 8 - Lines of Credit	9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Note 8 - Lines of Credit Diamond Bar entered into an agreement with a bank in California for a line of credit of up to $5,000,000 with annual interest rate of 4.25% and maturity on June 1, 2015. On June 8, 2015, the bank extended and modified the terms of the loan agreement to extend the line of credit up to a maximum of $6,000,000 until July 31, 2015 and $5,000,000 thereafter with an annual interest rate of 4.25% and maturity on September 1, 2015 (the term of which the bank allowed to extend until the renewal described in the following sentence while the bank conducted its own audit associated therewith). On September 28, 2015, Diamond Bar extended the line of credit up to a maximum of $6,000,000 with annual interest rate of 3.75% (4% from December 17, 2015) and maturity on June 1, 2017. On January 20, 2016, Diamond Bar increased the line of credit up to a maximum of $8,000,000 with annual interest rate of 4%. On June 22, 2017, Diamond Bar extended the line of credit to maturity on September 1, 2017. On September 19, 2017, Diamond Bar extended the line of credit to maturity on June 1, 2019. The annual interest rate was 5.25% as of September 30, 2018. The line of credit is secured by all of the assets of Diamond Bar and is guaranteed by Nova LifeStyle. As of September 30, 2018 and December 31, 2017, Diamond Bar had $4,851,825 and $4,202,118 outstanding on the line of credit, respectively. During the nine months ended September 30, 2018 and 2017, the Company recorded interest expense of $92,524 and $145,857, respectively; and $36,696 and $40,932 for the three months ended September 30, 2018 and 2017, respectively. As of September 30, 2018, Diamond Bar had $3,148,175 available for borrowing without violating any covenants. The Diamond Bar loan has the following covenants: (i) maintain a minimum tangible net worth of not less than $20 million; (ii) maintain a ratio of debt to tangible net worth not in excess of 2.5 to 1.0; (iii) the pre-tax income must be not less than 1% of total revenue quarterly; and (iv) maintain a current ratio in excess of 1.25 to 1.00. As of September 30, 2018, Diamond Bar was in compliance with the stated covenants. On January 22, 2015, Nova Macao renewed a line of credit, with an annual interest rate of 4.25% and principal of up to $6,500,000, with a commercial bank in Hong Kong to extend the maturity date to January 29, 2016. On February 16, 2016, Nova Macao extended the maturity date of line of credit to January 31, 2017, with an annual interest rate of 4% and principal of up to $6,500,000. The loan requires monthly payment of interest and that the interest rate will be adjusted annually. The loan was secured by assignment of Sinosure (China Export and Credit Insurance Company) credit insurance and was guaranteed by Nova LifeStyle and Diamond Bar. The Company did not extend the line of credit and paid it off in February 2017. As of September 30, 2018 and December 31, 2017, Nova Macao had $0 outstanding on the line of credit, respectively. During the nine months ended September 30, 2018 and 2017, Nova Macao paid interest of $0 and $13,828, respectively; and $0 for the three months ended September 30, 2018 and 2017.

Note 8 - Lines of Credit

Diamond Bar entered into an agreement with a bank in California for a line of credit of up to $5,000,000 with annual interest rate of 4.25% and maturity on June 1, 2015. On June 8, 2015, the bank extended and modified the terms of the loan agreement to extend the line of credit up to a maximum of $6,000,000 until July 31, 2015 and $5,000,000 thereafter with an annual interest rate of 4.25% and maturity on September 1, 2015 (the term of which the bank allowed to extend until the renewal described in the following sentence while the bank conducted its own audit associated therewith). On September 28, 2015, Diamond Bar extended the line of credit up to a maximum of $6,000,000 with annual interest rate of 3.75% (4% from December 17, 2015) and maturity on June 1, 2017. On January 20, 2016, Diamond Bar increased the line of credit up to a maximum of $8,000,000 with annual interest rate of 4%. On June 22, 2017, Diamond Bar extended the line of credit to maturity on September 1, 2017. On September 19, 2017, Diamond Bar extended the line of credit to maturity on June 1, 2019. The annual interest rate was 5.25% as of September 30, 2018. The line of credit is secured by all of the assets of Diamond Bar and is guaranteed by Nova LifeStyle. As of September 30, 2018 and December 31, 2017, Diamond Bar had $4,851,825 and $4,202,118 outstanding on the line of credit, respectively. During the nine months ended September 30, 2018 and 2017, the Company recorded interest expense of $92,524 and $145,857, respectively; and $36,696 and $40,932 for the three months ended September 30, 2018 and 2017, respectively. As of September 30, 2018, Diamond Bar had $3,148,175 available for borrowing without violating any covenants.

The Diamond Bar loan has the following covenants: (i) maintain a minimum tangible net worth of not less than $20 million; (ii) maintain a ratio of debt to tangible net worth not in excess of 2.5 to 1.0; (iii) the pre-tax income must be not less than 1% of total revenue quarterly; and (iv) maintain a current ratio in excess of 1.25 to 1.00. As of September 30, 2018, Diamond Bar was in compliance with the stated covenants.

On January 22, 2015, Nova Macao renewed a line of credit, with an annual interest rate of 4.25% and principal of up to $6,500,000, with a commercial bank in Hong Kong to extend the maturity date to January 29, 2016. On February 16, 2016, Nova Macao extended the maturity date of line of credit to January 31, 2017, with an annual interest rate of 4% and principal of up to $6,500,000. The loan requires monthly payment of interest and that the interest rate will be adjusted annually. The loan was secured by assignment of Sinosure (China Export and Credit Insurance Company) credit insurance and was guaranteed by Nova LifeStyle and Diamond Bar. The Company did not extend the line of credit and paid it off in February 2017. As of September 30, 2018 and December 31, 2017, Nova Macao had $0 outstanding on the line of credit, respectively. During the nine months ended September 30, 2018 and 2017, Nova Macao paid interest of $0 and $13,828, respectively; and $0 for the three months ended September 30, 2018 and 2017.