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Bonds Payable (Tables)

12 Months Ended

Dec. 31, 2019

Text block [abstract]

Summary of Bonds Payable

		December 31
		2018				2019
		NT$				NT$				US$ (Note 4)

Unsecured domestic bonds
Repayable at maturity in January 2021 and interest due annually with annual interest rate at 1.30%		$	7,000,000			$	7,000,000			$	234,035
Repayable at maturity in January 2023 and interest due annually with annual interest rate at 1.50%			2,000,000				2,000,000				66,867
Repayable at maturity in January 2022 and interest due annually with annual interest rate at 1.25%			3,700,000				3,700,000				123,704
Repayable at maturity in January 2024 and interest due annually with annual interest rate at 1.45%			4,300,000				4,300,000				143,765
Repayable at maturity in April 2024 and interest due annually with annual interest rate at 0.90%			—				6,500,000				217,319
Repayable at maturity in April 2026 and interest due annually with annual interest rate at 1.03%			—				3,500,000				117,018
Unsecured international bonds
US$200,000 thousand (linked to New Taiwan dollar), repayable at maturity in October 2022 and interest due quarterly with annual interest rate at 2.15%			—				6,204,800				207,449
US$100,000 thousand (linked to New Taiwan dollar), repayable at maturity in October 2024 and interest due quarterly with annual interest rate at 2.50%			—				3,102,400				103,725
Secured domestic bonds
Repayable at maturity in December 2020 and interest due annually with nil annual interest rate			—				250,000				8,358
			17,000,000				36,557,200				1,222,240
Less: discounts on bonds payable			14,064				35,045				1,172
			16,985,936				36,522,155				1,221,068
Less: current portion of bonds payable			—				250,000				8,358

		$	16,985,936			$	36,272,155			$	1,212,710