Plastec Technologies (PLTYF) 20-F 25 Apr 14 2013 FY Annual report (foreign) Financial data

Document_And_Entity_Informatio

Document And Entity Information	12 Months Ended
	Dec. 31, 2013
Document Information [Line Items]	'
Entity Registrant Name	'Plastec Technologies, Ltd.
Entity Central Index Key	'0001433309
Current Fiscal Year End Date	'--12-31
Entity Filer Category	'Non-accelerated Filer
Trading Symbol	'PLTYF
Entity Common Stock, Shares Outstanding	12,938,128
Document Type	'20-F
Amendment Flag	'false
Document Period End Date	31-Dec-13
Document Fiscal Period Focus	'FY
Document Fiscal Year Focus	'2013
Entity Well-known Seasoned Issuer	'No
Entity Voluntary Filers	'No
Entity Current Reporting Status	'Yes

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Current assets	'	'	'
Cash and cash equivalents	348,901	309,862	199,818
Trade receivables, net of allowances for doubtful accounts of HK$nil, HK$nil and HK$nil as of April 30, 2012 and December 31, 2012 and 2013 respectively	269,419	257,299	282,869
Inventories (note 3)	107,058	97,467	128,387
Deposits, prepayment and other receivables (note 4)	28,139	35,471	20,514
Total current assets	753,517	700,099	631,588
Property, plant and equipment, net (note 5)	364,149	440,383	524,137
Prepaid lease payments, net (note 6)	22,167	23,719	24,753
Other assets	2,325	14,503	12,813
Deferred tax assets (note 10)	12,225	0	0
Intangible assets	438	438	438
Total assets	1,154,821	1,179,142	1,193,729
Current liabilities	'	'	'
Bank borrowings (note 7)	37,782	96,892	156,866
Capital lease obligations (note 8)	0	0	303
Trade payables	105,428	151,436	121,964
Other payables and accruals (note 9)	116,608	115,715	115,109
Tax payable	41,389	25,225	72,936
Total current liabilities	301,207	389,268	467,178
Borrowings	50,000	0	0
Deferred tax liabilities (note 10)	0	11,629	14,504
Total liabilities	351,207	400,897	481,682
Commitments and contingencies (note 12)	0	0	0
Shareholders' equity	'	'	'
Ordinary shares (U.S.$0.001 par value; 100,000,000 authorized, 14,352,903, 14,292,228 and 12,938,128 shares issued and outstanding as of April 30, 2012 and December 31, 2012 and 2013, respectively)	101	112	112
Additional paid-in capital	26,455	85,332	77,967
Accumulated other comprehensive income	17,901	14,524	15,514
Retained earnings	759,157	678,277	618,454
Total shareholders' equity	803,614	778,245	712,047
Total liabilities and shareholders' equity	1,154,821	1,179,142	1,193,729

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS [Parenthetical]	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2012
In Thousands, except Share data, unless otherwise specified	USD ($)	HKD	USD ($)	HKD	USD ($)	HKD
Allowance for doubtful accounts receivable	'	0	'	0	'	0
Common stock, par or stated value per share (in dollars per share)	$0.00	'	$0.00	'	$0.00	'
Common stock, shares authorized	100,000,000	100,000,000	100,000,000	100,000,000	100,000,000	100,000,000
Common stock, shares issued	12,938,128	12,938,128	14,292,228	14,292,228	14,352,903	14,352,903
Common stock, shares outstanding	12,938,128	12,938,128	14,292,228	14,292,228	14,352,903	14,352,903

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (HKD)	8 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Revenues	933,888	911,294	1,167,115	1,313,818	1,291,223	1,323,533
Cost of revenues	-807,104	-801,413	-899,400	-1,144,971	-1,142,653	-1,074,880
Gross profit	126,784	109,881	267,715	168,847	148,570	248,653
Operating expenses, net	'	'	'	'	'	'
Selling, general and administrative expenses	-66,330	-56,498	-166,969	-94,743	-81,557	-83,584
Other income	6,266	1,600	2,508	7,098	2,431	4,711
Write-off of property, plant and equipment	-4,058	-690	-14,920	-4,058	-690	-1,791
Gain / (Loss) on disposal of property, plant and equipment	1,898	829	-2,836	2,007	938	1,315
Total operating expenses, net	-62,224	-54,759	-182,217	-89,696	-78,878	-79,349
Income from operations	64,560	55,122	85,498	79,151	69,692	169,304
Interest income	166	172	276	212	218	124
Interest expense	-1,559	-1,880	-1,160	-2,374	-2,695	-3,008
Income before income tax expense	63,167	53,414	84,614	76,989	67,215	166,420
Income tax expense (note 10)	-3,344	-13,379	-3,734	-6,777	-16,811	-33,106
Net income	59,823	40,035	80,880	70,212	50,404	133,314
Other comprehensive income	'	'	'	'	'	'
Foreign currency translation adjustment	-990	7,157	3,377	-911	7,408	218
Comprehensive income attributable to Plastec Technologies, Ltd.	58,833	47,192	84,257	69,301	57,812	133,532
Net income per share (note 11):	'	'	'	'	'	'
Weighted average number of ordinary shares (in shares)	14,303,544	16,540,951	13,503,623	14,446,515	15,944,233	7,891,754
Weighted average number of diluted ordinary shares (in shares)	14,303,544	16,540,951	13,503,623	14,446,515	15,944,233	7,891,754
Basic income per share attributable to Plastec Technologies, Ltd. (in dollars per share)	4.2	2.4	6	4.9	3.2	16.9
Diluted income per share attributable to Plastec Technologies, Ltd. (in dollars per share)	4.2	2.4	6	4.9	3.2	16.9

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (HKD)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
In Thousands, except Share data
Balance at Apr. 30, 2011	746,260	131	169,973	8,106	568,050
Balance (in shares) at Apr. 30, 2011	'	16,733,196	'	'	'
Net income for the year	50,404	0	0	0	50,404
Share repurchases	-92,025	-13	-92,012	0	0
Share repurchases (in shares)	'	-1,574,000	'	'	'
Share redeemed and cancelled	'	-6	6	0	0
Share redeemed and cancelled (in shares)	'	-806,293	'	'	'
Cumulative translation adjustment	7,408	0	0	7,408	0
Balance at Apr. 30, 2012	712,047	112	77,967	15,514	618,454
Balance (in shares) at Apr. 30, 2012	'	14,352,903	'	'	'
Net income for the year	59,823	0	0	0	59,823
Share repurchases	-2,840	0	-2,840	0	0
Share repurchases (in shares)	'	-60,675	'	'	'
Capital contribution	10,205	0	10,205	0	0
Cumulative translation adjustment	-990	0	0	-990	0
Balance at Dec. 31, 2012	778,245	112	85,332	14,524	678,277
Balance (in shares) at Dec. 31, 2012	'	14,292,228	'	'	'
Net income for the year	80,880	0	0	0	80,880
Share repurchases	-63,371	-11	-63,360	0	0
Share repurchases (in shares)	'	-1,354,100	'	'	'
Warrants repurchases	-33	0	-33	0	0
Warrants repurchases (in shares)	'	0	'	'	'
Capital contribution	4,516	0	4,516	0	0
Cumulative translation adjustment	3,377	0	0	3,377	0
Balance at Dec. 31, 2013	803,614	101	26,455	17,901	759,157
Balance (in shares) at Dec. 31, 2013	'	12,938,128	'	'	'

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Operating activities	'	'	'	'
Net income	59,823	80,880	50,404	133,314
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'	'
Depreciation and amortization	103,513	123,741	157,219	143,640
Net (gain)/loss on disposal of property, plant and equipment	-1,898	2,836	-938	-1,315
Net gain on disposal of prepaid leases	0	0	0	-3,799
Write-off of property, plant and equipment	4,058	14,920	690	1,791
Impairment on inventories	4,108	7,037	6,920	6,095
Deferred tax charge	-2,732	-23,854	-652	0
Changes in operating assets and liabilities:	'	'	'	'
Trade receivables	25,553	-12,120	-12,106	-28,666
Inventories	26,812	-16,628	-17,574	-49,530
Deposits, prepayment and other receivables	-13,772	7,332	-12,158	3,382
Trade payables	29,472	-46,008	-6,023	-8,027
Other payables and accruals	12,212	891	34,299	27,044
Tax payables	416	19,276	16,547	37,711
Net cash provided by operating activities	247,566	158,303	216,628	261,640
Investing activities	'	'	'	'
Purchase of property, plant and equipment	-87,224	-54,436	-126,167	-225,904
Proceeds from disposal of property, plant and equipment	29,665	6,634	5,252	2,405
Proceeds from disposal of prepaid leases	0	0	0	3,919
Deposits for purchase of property, plant and equipment	-15,690	-2,325	-12,813	-8,001
Net loss on disposals of subsidiaries	-165	0	0	0
Net cash used in investing activities	-73,414	-50,127	-133,728	-227,581
Financing activities	'	'	'	'
Net cash inflow from the merger transaction	0	0	0	58,160
Repurchases of shares	-2,841	-63,404	-92,025	0
Proceeds from bank borrowings	220,809	195,214	379,465	464,651
Repayment of bank borrowings	-280,783	-204,324	-392,309	-408,917
Repayment of capital lease obligations	-303	0	-5,311	-9,718
Dividends paid	0	0	0	-70,000
Net cash provided by/(used in) financing activities	-63,118	-72,514	-110,180	34,176
Effect of exchange rate changes on cash and cash equivalents	-990	3,377	7,341	218
Net increase/(decrease) in cash and cash equivalents	111,034	35,662	-27,280	68,235
Cash and cash equivalents, beginning of year	199,818	309,862	219,757	151,304
Cash and cash equivalents, end of year	309,862	348,901	199,818	219,757
Supplementary disclosures of cash flow information:	'	'	'	'
Interest paid, net	1,393	886	2,477	2,883
Income taxes (received)/paid	5,660	8,312	916	-4,605

Organization_and_Business_Back

Organization and Business Background	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Business Description and Basis of Presentation [Text Block]	'
		1	Organization and Business Background
	Plastec Technologies, Ltd. (“Company”) (formerly known as “GSME Acquisition Partners I”), incorporated under the laws of Cayman Islands on March 27, 2008, and its subsidiaries (where the context permits, references to the “Company” below shall include references to its subsidiaries collectively as a group) are principally engaged in the provision of integrated plastic manufacturing services from mold design and fabrication, plastic injection manufacturing to secondary-process finishing as well as parts assembly. The Company’s manufacturing activities are performed in the People’s Republic of China (the “PRC” or “China”) and Thailand. The selling and administrative activities are mainly performed in China.
	As of December 31, 2013, details of the Company’s subsidiaries are as follows:
	Name		Date of	Place of	Percentage of	Principal activities
			incorporation/	incorporation/	equity
			establishment	registration	interest
				and operation	attributable
					to the
					Company
	Allied Sun Corporation Limited		20-Aug-08	Hong Kong	100%	Trading and investment holding
	Broadway Industrial Holdings Limited		22-Mar-06	Hong Kong	100%	Trading and investment holding
	Broadway Industries (Thailand) Co., Ltd.		2-Aug-11	Thailand	100%	Trading
	Broadway Manufacturing Company Limited		17-Aug-05	BVI	100%	Property investment
	Broadway Precision (Shenzhen) Co., Ltd.		3-Aug-12	PRC	100%	Manufacturing of plastic parts and utensils
	百汇精密塑胶模具(深圳)有限公司
	Broadway Precision (Thailand) Co., Ltd.		10-May-12	Thailand	100%	Manufacturing of plastic parts and utensils
	Broadway Precision Co. Limited (previously named, Sun Luck Trading Limited)		18-Mar-10	Hong Kong	100%	Management services
	Broadway Precision Industrial (Kunshan) Ltd.		26-Aug-08	PRC	100%	Manufacturing of plastic parts and utensils
	昆山海汇精密模具工业 有限公司
	Broadway Precision Technology Limited		28-Apr-11	Hong Kong	100%	Dormant
	Name		Date of	Place of	Percentage of	Principal activities
			incorporation/	incorporation/	equity
			establishment	registration	interest
				and operation	attributable
					to the
					Company
	Broadway Precision Technology Ltd.		8-Feb-11	BVI	100%	Trading and investment holding
	百汇精密科技有限公司
	(previously named, Pan Sino International Limited)
	Dongguan Sun Chuen Plastic Products Co., Ltd. (“Dongguan Sun Chuen”)		8-Dec-04	PRC	100%	Manufacturing of plastic parts and utensils
	东莞新川塑胶制品有限公司
	Heyuan Sun Line Industrial Ltd. (“Heyuan Sun Line”)		20-Feb-04	PRC	100%	Dormant
	河源新丽工业有限公司
	Plastec International Holdings Limited		18-Feb-04	BVI	100%	Investment holding
	Source Wealth Limited		18-Mar-10	Hong Kong	100%	Investment holding
	Sun Line Industrial Limited		27-Apr-93	Hong Kong	100%	Investment holding
	Broadway (Macao Commercial Offshore) Company Limited (Previously		13-Aug-04	Macau	100%	Trading
	named Sun Line (Macao Commercial Offshore) Company Limited)
	Sun Line Precision Industrial (Zhuhai) Ltd.		10-Oct-08	PRC	100%	Dormant
	珠海新丽模具有限公司
	Name		Date of	Place of	Percentage of	Principal activities
			incorporation/	incorporation/	equity
			establishment	registration	interest
				and operation	attributable
					to the
					Company
	Sun Line Precision Ltd.		10-Mar-04	BVI	100%	Trading and investment holding
	(previously named, “Fast Achieve Enterprises Ltd.”)
	Sun Line Services Limited		8-Jan-13	Hong Kong	100%	Management services
	Sun Ngai Spraying and Silk Print Co., Ltd.		25-Jul-95	BVI	100%	Dormant
	Sun Ngai Spraying and Silk Print (HK) Co., Limited		22-Mar-06	Hong Kong	100%	Dormant
	Sun Terrace Industries Limited		2-Mar-04	BVI	100%	Investment holding
	Viewmount Developments Limited		12-Nov-13	BVI	100%	Investment holding
	The Merger Transaction with Plastec International Holdings Limited
	On March 27, 2008, the Company was established as a special purpose acquisition company whose objective is to consummate an acquisition, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses located in the PRC.
	On August 6, 2010, the Company entered into an Agreement and Plan of Reorganization (the “Merger Agreement”) with GSME Acquisition Partners I Sub Limited (“GSME Sub”), Plastec International Holdings Limited (“Plastec”) and all former shareholders of Plastec (“Plastec Shareholders”) (together, the “Parties”). Upon the consummation of the transactions contemplated by the Merger Agreement, GSME Sub was to be merged with and into Plastec, with Plastec surviving as a wholly-owned subsidiary of the Company (the “Merger”). The Plastec Shareholders were then entitled to receive up to an aggregate of 16,948,053 ordinary shares, par value U.S.$0.001 per share, of the Company.
	On September 13, 2010, in connection with the Merger, the Parties entered into an Amended and Restated Agreement and Plan of Reorganization (the “Amended and Restated Merger Agreement”) to, amongst other matters, revise the terms of the merger consideration to be paid to the Plastec Shareholders. Pursuant to the Amended and Restated Merger Agreement, upon consummation of the Merger, the Plastec Shareholders became entitled to receive up to an aggregate of 16,778,571 ordinary shares of the Company, of which 7,054,583 shares were issued to the Plastec Shareholders on the closing of the Merger and the remaining of up to 9,723,988 shares (2,944,767, 3,389,610 and 3,389,611 shares for 2011, 2012 and 2013 respectively) (the “Earnout Shares”) will be issued to the Plastec Shareholders, if Plastec has net income as defined in the Amended and Restated Merger Agreement in the following amounts for the indicated years ending April 30 below:
	Year ending April 30,		Net Income
			HK$
	2011		130,700
	2012		176,000
	2013		250,000
	At the Special Meeting held on December 10, 2010, the merger proposal was approved by the shareholders. On December 16, 2010, the Company consummated the transactions contemplated by the Amended and Restated Merger Agreement, pursuant to which, amongst other things, Plastec became a wholly owned subsidiary of the Company (the “Merger Transaction”). The Merger Transaction was accounted for as a reverse acquisition with Plastec being considered the accounting acquirer in the Merger.
The completion of the Merger enabled the Plastec Shareholders to obtain a majority voting interest in the Company. Generally accepted accounting principles in the United States require that a company whose shareholders retain the majority interest in a combined business be treated as the acquirer for accounting purposes. Accordingly, the aforementioned Merger Transaction was accounted for as a reverse acquisition of a private operating company (Plastec) with a non-operating public company (the Company) with significant amount of cash. The reverse acquisition process utilizes the capital structure of the Company and the assets and liabilities of Plastec are recorded at historical cost. The transaction was recorded as a recapitalization of Plastec and thus was reflected retrospectively in Plastec’s historical financial statements. Although Plastec is deemed to be the accounting acquirer for financial accounting and reporting purposes, the legal status of Plastec as the surviving company did not change.
Under the reverse acquisition accounting, the historical consolidated financial statements of the Company for the periods prior to December 16, 2010 are those of Plastec and its subsidiaries. Since Plastec is deemed as accounting acquirer, Plastec’s fiscal year replaced the Company’s fiscal year. The fiscal year end is changed from October 31 to April 30. The financial statements of the Company reflect the aforementioned Merger Transaction in the consolidated statement of shareholders’ equity through a line of “Recapitalization in connection with the reverse merger” to present the net assets of the Company as of December 16, 2010. The net assets of the Company as of December 16, 2010 were as follows:
Net assets acquired:		HK$
Cash		58,160
Accounts payable and accrued liabilities		-1,524
		56,636
On April 30, 2011, the Parties entered into an amendment to the Amended and Restated Merger Agreement to remove the provisions of Earnout Shares and issued an aggregate of 7,486,845 ordinary shares of the Company to the Plastec Shareholders on April 30, 2011.
Purchase of equity securities by the issuer
Prior to November 2011, the Company had no plans or programs for the purchase of its outstanding securities.  However, in connection with the Merger, holders of 2,615,732 of the Company public shares elected to exercise their conversion rights (for a description of these rights, see the IPO Prospectus and the Merger Proxy Statement) and, upon the closing of the Merger, such shares were converted into an average U.S.$10.30 (including proceeds that were originally to be from a letter of credit provided by Cohen & Company Securities, LLC but were ultimately paid by Company) in cash and were cancelled.  Under Cayman Islands law, such conversions are technically considered “repurchases.”
In November 2011, the Board of Directors of Company approved a U.S.$5 million share repurchase program expiring initially in June 2012 but which was extended twice through December 2013 and expanded to cover publicly held warrants (“2011 Repurchase Program”).  Under the 2011 Repurchase Program, the Company was permitted to make repurchases of ordinary shares and publicly held warrants from time to time in open market or in privately negotiated transactions.  The timing of repurchases under this program was dependent on a variety of factors, including price and market conditions prevailing from time to time. The 2011 Repurchase Program was completed on September 25, 2013. On the same date, the Company announced a new U.S.$5 million repurchase plan (“2013 Repurchase Program”) approved by the Board of Directors of the Company to cover repurchases of ordinary shares and publicly held warrants from time to time in open market or in privately negotiated transactions through September 25, 2014. The timing of repurchases under the 2013 Repurchase Program will depend on a variety of factors, including price and market conditions prevailing from time to time, and the program may be suspended, modified or discontinued without notice at any time.
The following table summarizes the Company’s repurchases of ordinary shares and publicly held warrants under the 2011 and 2013 Repurchase Programs:
Period*		Total number of	Total number of
		publicly held	ordinary shares
		warrants purchased	purchased as part of
		as part of the	the publicly
		publicly announced	announced
		repurchase plans	repurchase plans
Feb-12		-	4,000
Jun-12		-	60,675
Jan-13		-	600,000
Jun-13		80,000	94,100
Aug-13		5,000	-
Sep-13		-	73,990
Oct-13		-	586,010
* Each period covers the full calendar month indicated. There were no repurchases made in omitted months. Repurchases for September 2013 and earlier months were under the 2011 Repurchase Program. Repurchases for October 2013 were under the 2013 Repurchase Program.
In addition to the purchases made pursuant to the 2011 and 2013 Repurchase Programs, the Company also repurchased 1,570,000 ordinary shares held by Sun Yip Industrial Company Limited, an entity controlled by Mr. Sze-To, pursuant to a purchase agreement on December 1, 2011 at a price of U.S.$7.5 per share or approximately U.S.$11.8 million in cash, which shares were cancelled.
Further, pursuant to the mandatory redemption terms of an escrow agreement (as amended on December 16, 2011), a total of 806,293 ordinary shares held in escrow on account of our initial shareholders were automatically repurchased by us at the close of business on March 16, 2012 for an aggregate consideration of U.S.$0.01, which redeemed shares were likewise cancelled.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies [Text Block]	'
		2	Summary of Significant Accounting Policies
	Principles of consolidation
	The consolidated financial statements, prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”), include the assets, liabilities, revenues, expenses and cash flows of all subsidiaries. All significant intercompany balances, transactions and cash flows are eliminated on consolidation.
	Foreign currency translation
	The functional currency of the Company is United States Dollar. The functional currency of the subsidiaries other than the subsidiaries in the PRC and the Thailand is Hong Kong dollar. The subsidiaries in the PRC and Thailand have their local currency, Renminbi, Thai Baht as their functional currencies.
	In the individual financial statements of the consolidated entities, foreign currency transactions are translated into the functional currency of the individual entity using the exchange rates prevailing at the dates of the transactions. At the reporting date, monetary assets and liabilities denominated in foreign currencies are translated at the foreign exchange rates ruling at the reporting date. Foreign exchange gains and losses resulting from the settlement of such transactions and from the reporting date retranslation of monetary assets and liabilities are recognized in the consolidated statement of income. Aggregate net foreign currency transaction gain (loss) were (HK$1,164), HK$10,127, HK$2,102 and (HK$8,206) for the years ended April 30, 2011, 2012 and the 8-month period ended December 31, 2012 and for the year ended December 31, 2013, respectively.
	Non-monetary items carried at fair value that are denominated in foreign currencies are retranslated at the rates prevailing on the date when the fair value was determined and are reported as part of the fair value gain or loss. Non-monetary items that are measured in terms of historical cost in a foreign currency are not retranslated.
	In the consolidated financial statements, all individual financial statements originally presented in a currency different from the Company’s reporting currency have been converted into Hong Kong dollars. Assets and liabilities have been translated into Hong Kong dollars at the closing rates at the reporting date. Income and expenses have been converted into the Hong Kong dollars at the exchange rates ruling at the transaction dates, or at the average rates over the reporting period provided that the exchange rates do not fluctuate significantly. Any differences arising from this procedure have been recognized in other comprehensive income and accumulated separately in the shareholders’ equity.
	Use of estimates
	The preparation of consolidated financial statements in conformity with the US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The most significant estimates relate to allowances for doubtful accounts, inventory valuation, useful lives of property, plant and equipment, valuation allowance for deferred tax assets and contingencies. Actual results could differ from those estimates made by management.
	Cash and cash equivalents
	Cash and cash equivalents include cash at bank and in hand and demand deposits with banks with original maturities of three months or less that are readily convertible into known amounts of cash and which are subject to an insignificant risk of changes in value.
	Trade receivables
	Trade receivables are stated at the amount management expects to collect from balances outstanding at reporting period end. Based on management’s assessment of the credit history with customers having outstanding balances and current relationships with them, it has concluded that realization losses on balances outstanding at reporting period end will be immaterial.
	Allowance for doubtful account
	The Company regularly monitors and assesses the risk of not collecting amounts owed to the Company by customers. This evaluation is based upon a variety of factors including: ongoing credit evaluations of its customers’ financial condition, an analysis of amounts current and past due along with relevant history and facts particular to the customer. Trade receivables are written off if reasonable collection efforts are not successful.
	Inventories
	Inventories are stated at the lower of cost or market. Cost is determined on using the first-in first-out method. Work-in-progress and finished goods comprises of raw materials, direct labour and overhead associated with the manufacturing process. Write down of potentially obsolete or slow-moving inventory are recorded based on management’s analysis of inventory levels.
	Property, plant and equipment
	Property, plant and equipment, other than construction in progress, are stated at acquisition cost less accumulated depreciation and impairment losses. The cost of an asset comprises its purchase price and any directly attributable costs of bringing the asset to its working condition and location for its intended use.
	Depreciation is provided to write off the cost less their residual values over their estimated useful lives, using the straight-line method, at the following rates per annum:
	Buildings		5%
	Plant and machineries		20%
	Furniture, fixtures and equipment		20%-33.33%
	Leasehold improvements		20%-33.33%
	Computer equipment		33.33%-50%
	Motor vehicles		20%
	Moulds		33.33%-92%
	The assets’ estimated residual values, depreciation methods and estimated useful lives are reviewed, and adjusted if appropriate, at each reporting date.
	Construction in progress represents assets in the course of construction for production or for its own use purpose. It is stated at cost less any impairment loss and is not depreciated. Cost includes direct costs incurred during the periods on construction, installation and testing plus interest charges arising from borrowings used to finance these assets during the construction period, if any. Construction in progress is reclassified to the appropriate category of property, plant and equipment and depreciation commences when the construction work is completed and the asset is ready for use.
	The gain or loss arising on retirement or disposal is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the consolidated statement of income.
	All other costs, such as repairs and maintenance are charged to the operations during the financial period in which they are incurred.
	Prepaid lease payments
	Upfront payments made to acquire land held under an operating lease are stated at costs less accumulated amortization and any accumulated impairment losses. The determination if an arrangement is or contains a lease and the lease is an operating lease is detailed as below. Amortization is calculated on a straight line basis over the term of the lease/right of use except where an alternative basis is more representative of the time pattern of benefits to be derived by the Company from use of the land.
	Leases
	Leases are classified at the inception date as either a capital lease or an operating lease. For the lessee, a lease is a capital lease if any of the following conditions exist: a) ownership is transferred to the lessee by the end of the lease term, b) there is a bargain purchase option, c) the lease term is at least 75% of the property’s estimated remaining economic life or d) the present value of the minimum lease payments at the beginning of the lease term is 90% or more of the fair value of the leased property to the lessor at the inception date. A capital lease is accounted for as if there was an acquisition of an asset and an incurrence of an obligation at the inception of the lease. All other leases are accounted for as operating leases. The Company has both capital leases and operating leases in the periods presented.
	Valuation of long-lived assets
	The Company periodically evaluates the carrying value of long-lived assets to be held and used when events and circumstances warrant such a review. The carrying value of a long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate with the risk involved. Losses on long-lived assets to be disposed of are determined in a similar manner, except that fair market values are reduced for the cost to dispose.
	Revenue recognition
	Sales of goods are recognized when goods are shipped, title of goods sold has passed to the purchaser, the price is fixed or determinable as stated on the sales contract, and its collectability is reasonably assured. Customers do not have a general right of return on products shipped. The Company permits the return of damaged or defective products and accounts for these returns as deduction from sales. Products returns to the Company were insignificant during past years.
	Comprehensive income
	The Company presents comprehensive income in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 220 “Comprehensive Income”. FASB ASC 220 states that all items that are required to be recognized under accounting standards as components of comprehensive income be reported in the consolidated financial statements. The components of comprehensive income were the net income for the periods and the foreign currency translation adjustments.
	Shipping and handling cost
	Shipping and handling costs related to the delivery of finished goods are included in selling, general and administrative expenses. For the years ended April 30, 2011 and 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31, 2013, shipping and handling costs were HK$15,549, HK$17,421, HK$12,474 and HK$14,630 respectively.
	Income taxes
	The Company accounts for income taxes in accordance with FASB ASC 740 “Income taxes”, which requires an entity to recognize deferred tax assets and liabilities using the asset and liability method. Under this method, deferred income taxes are recognized for all temporary differences at enacted rates and classified as current or non-current based upon the classification of the related asset or liability in the consolidated financial statements. A valuation allowance is provided to reduce the amount of deferred tax assets if it is considered more likely than not that some portion of, or all, the deferred tax asset will not be realized.
	FASB ASC 740 clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements, and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. It also provides accounting guidance on de-recognition, classification, interest or penalties, accounting in interim periods, disclosure and transition. Interest and penalties from tax assessments, if any, are included in income taxes in the consolidated statement of income.
	Post-retirement and post-employment benefits
	The Company contributes to a defined contribution retirement benefit plan under the Mandatory Provident Fund Schemes Ordinance for all of its Hong Kong employees who are eligible to participate in the Mandatory Provident Fund (“MPF”) Scheme. Contributions are made based on a percentage of the employees’ basic salaries.
	The employees of the Company’s subsidiaries which operate in the PRC are required to participate in a central pension scheme operated by the local municipal government. PRC subsidiaries are required to contribute certain percentage of its payroll costs to the central pension scheme.
	Contributions are recognized as an expense in consolidated statement of income as employees render services during the period. The Company's obligations under these plans are limited to the fixed percentage contributions payable.
	Net income per share
	Basic net income per share is computed by dividing net income available to ordinary shares by the weighted average number of ordinary shares outstanding during the period. Diluted net income per share gives effect to all dilutive potential ordinary shares outstanding during the period. The weighted average number of ordinary shares outstanding is adjusted to include the number of additional ordinary shares that would have been outstanding if the dilutive potential ordinary shares had been issued. In computing the dilutive effect of potential ordinary shares, the average stock price for the period is used in determining the number of treasury shares assumed to be purchased with the proceeds from the exercise of options.
	Derivatives
	Derivatives are carried at fair value and are reported as other current assets when the Company has a contractual right to receive cash from the counterparty that are potentially favorable to the Company and as accrued and other current liabilities where the Company has a contractual obligation to deliver cash to a counterparty that are potentially unfavorable to the Company.
	If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and the hedged item are recognized in the consolidated statement of income and comprehensive income. If the derivative is designated as a cash flow hedge, changes in the fair value of the derivative are recorded in other comprehensive income and are recognized in the consolidated statement of income and comprehensive income when the hedged item affects net income. If a derivative does not qualify as a hedge, it is marked to fair value through the consolidated statement of income and comprehensive income.
	Fair Value Measurements
	The Company has adopted FASB ASC 820 “Fair Value Measurements and Disclosures” which defines fair value, establishes a framework for measuring fair value in the US GAAP, and expands disclosures about fair value measurements. It does not require any new fair value measurements, but provides guidance on how to measure fair value by providing a fair value hierarchy used to classify the source of the information.
	Its establishes a three-level valuation hierarchy of valuation techniques based on observable and unobservable inputs, which may be used to measure fair value and include the following:
		Level 1 -	Quoted prices in active markets for identical assets or liabilities.
		Level 2 -	Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
		Level 3 -	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
	Classification within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement.
Recently issued accounting pronouncements
In January 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-01, Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. This ASU clarifies that ordinary trade receivables and receivables are not in the scope of ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Specifically, ASU 2011-11 applies only to derivatives, repurchase agreements and reverse purchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with specific criteria contained in the FASB Accounting Standards Codification™ (Codification) or subject to a master netting arrangement or similar agreement. The FASB undertook this clarification project in response to concerns expressed by U.S. stakeholders about the standard’s broad definition of financial instruments. After the standard was finalized, companies realized that many contracts have standard commercial provisions that would equate to a master netting arrangement, significantly increasing the cost of compliance at minimal value to financial statement users. An entity is required to apply the amendments in ASU 2013-01 for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the required disclosures retrospectively for all comparative periods presented. The effective date is the same as the effective date of ASU 2011-11.
In February 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This ASU improves the transparency of reporting these reclassifications. Other comprehensive income includes gains and losses that are initially excluded from net income for an accounting period. Those gains and losses are later reclassified out of accumulated other comprehensive income into net income. The amendments in this ASU do not change the current requirements for reporting net income or other comprehensive income in financial statements. All of the information that this ASU requires already is required to be disclosed elsewhere in the financial statements under U.S. GAAP.
The new amendments will require an organization to:
⋅ Present (either on the face of the statement where net income is presented or in the notes) the effects on the line items of net income of significant amounts reclassified out of accumulated other comprehensive income - but only if the item reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period.
⋅ Cross-reference to other disclosures currently required under U.S. GAAP for other reclassification items (that are not required under U.S. GAAP) to be reclassified directly to net income in their entirety in the same reporting period. This would be the case when a portion of the amount reclassified out of accumulated other comprehensive income is initially transferred to a balance sheet account (e.g., inventory for pension-related amounts) instead of directly to income or expense.
The amendments apply to all public and private companies that report items of other comprehensive income. Public companies are required to comply with these amendments for all reporting periods (interim and annual). A private company is required to meet the reporting requirements of the amended paragraphs about the roll forward of accumulated other comprehensive income for both interim and annual reporting periods. However, private companies are only required to provide the information about the effect of reclassifications on line items of net income for annual reporting periods, not for interim reporting periods. The amendments are effective for reporting periods beginning after December 15, 2012, for public companies and are effective for reporting periods beginning after December 15, 2013, for private companies. Early adoption is permitted.
In February 2013, FASB issued Accounting Standards Update (ASU) No. 2013-03, Financial Instruments (Topic 825). This ASU clarifies the scope and applicability of a disclosure exemption that resulted from the issuance of Accounting Standards Update No. 2011-04,Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. The amendment clarifies that the requirement to disclose"the level of the fair value hierarchy within which the fair value measurements are categorized in their entirety (Level 1, 2, or 3)" does not apply to nonpublic entities for items that are not measured at fair value in the statement of financial position, but for which fair value is disclosed. This ASU is the final version of Proposed Accounting Standards Update 2013-200—Financial Instruments (Topic 825) which has been deleted. The amendments are effective upon issuance.
In February 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-04, Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date. This ASU provides guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this ASU is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. The guidance requires an entity to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this ASU also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. The amendments in this ASU are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. For nonpublic entities, the amendments are effective for fiscal years ending after December 15, 2014, and interim periods and annual periods thereafter. The amendments in this ASU should be applied retrospectively to all prior periods presented for those obligations resulting from joint and several liability arrangements within the ASU’s scope that exist at the beginning of an entity’s fiscal year of adoption. An entity may elect to use hindsight for the comparative periods (if it changed its accounting as a result of adopting the amendments in this ASU) and should disclose that fact. Early adoption is permitted.
In March 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-05, Foreign Currency Matters (Topic 830). This ASU resolve the diversity in practice about whether Subtopic 810-10, Consolidation—Overall, or Subtopic 830-30, Foreign Currency Matters—Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. In addition, the amendments in this Update resolve the diversity in practice for the treatment of business combinations achieved in stages (sometimes also referred to as step acquisitions) involving a foreign entity. This ASU is the final version of Proposed Accounting Standards Update EITF11Ar—Foreign Currency Matters (Topic 830), which has been deleted. The amendments in this Update are effective prospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2013. For nonpublic entities the amendments in this Update are effective prospectively for the first annual period beginning after December 15, 2014, and interim and annual periods thereafter. The amendments should be applied prospectively to derecognition events occurring after the effective date. Prior periods should not be adjusted. Early adoption is permitted. If an entity elects to early adopt the amendments, it should apply them as of the beginning of the entity’s fiscal year of adoption.
In April 2013, FASB Accounting Standards Update 2013-07,Presentation of Financial Statements (Topic 205): Liquidation Basis of Accounting. This ASU clarifies when an entity should apply the liquidation basis of accounting. In addition, the guidance provides principles for the recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. Liquidation is the process by which a company converts its assets to cash or other assets and settles its obligations with creditors in anticipation of ceasing all of its activities. An organization in liquidation must prepare its financial statements using a basis of accounting that communicates information to users of those financial statements to enable those users to develop expectations about how much the organization will have available for distribution to investors after disposing of its assets and settling its obligations. The ASU requires organization to prepare its financial statements using the liquidation basis of accounting when liquidation is “imminent.” Liquidation is considered imminent when the likelihood is remote that the organization will return from liquidation and either: (a) a plan for liquidation is approved by the person or persons with the authority to make such a plan effective and the likelihood is remote that the execution of the plan will be blocked by other parties; or (b) a plan for liquidation is being imposed by other forces (e.g., involuntary bankruptcy). In cases where a plan for liquidation was specified in the organization’s governing documents at inception (e.g., limited-life entities), the organization should apply the liquidation basis of accounting only if the approved plan for liquidation differs from the plan for liquidation that was specified in the organization’s governing documents. The ASU requires financial statements prepared using the liquidation basis to present relevant information about a company’s resources and obligations in liquidation, including the following:
⋅ The organization’s assets measured at the amount of the expected cash proceeds from liquidation, including any items it had not previously recognized under U.S. GAAP that it expects to either sell in liquidation or use in settling liabilities (e.g., trademarks).
⋅ The organization’s liabilities as recognized and measured in accordance with existing guidance that applies to those liabilities.
⋅ Accrual of the costs it expects to incur and the income it expects to earn during liquidation, including any anticipated disposal costs.
This ASU is effective for interim and annual reporting periods beginning after December 15, 2013, with early adoption permitted.
In July 2013, The FASB has published Accounting Standards Update 2013-09, Fair Value Measurement (Topic 820): Deferral of the Effective Date of Certain Disclosures for Nonpublic Employee Benefit Plans in Update No. 2011-04. This ASU defers indefinitely certain disclosures about investments held by nonpublic employee benefit plans in their plan sponsors’ own nonpublic equity securities. The ASU was approved by the FASB on June 12, 2013. ASU No. 2013-09, Fair Value Measurement (Topic 820): Deferral of the Effective Date of Certain Disclosures for Nonpublic Employee Benefit Plans in Update No. 2011-04, applies to disclosures of certain quantitative information about the significant unobservable inputs used in Level 3 fair value measurement for investments held by certain employee benefit plans.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
		3	Inventories
	Inventories consist of the following:
				April 30,	December	December
					31,	31,
				2012	2012	2013
				HK$	HK$	HK$
	Raw materials			35,519	30,971	27,607
	Work in progress			60,241	38,904	52,443
	Finished goods			32,627	27,592	27,008
				128,387	97,467	107,058
	The Company made allowances of HK$6,095, HK$6,920, HK$4,108 and HK$7,037 against the cost of inventories during the years ended April 30, 2011, 2012 and 8-month period ended December 31, 2012 and year ended December 31,2013, respectively based on the assessment of the lower of cost or market.

Deposits_Prepayment_and_Other_

Deposits, Prepayment and Other Receivables	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	'
		4	Deposits, Prepayment and Other Receivables
	Deposits, prepayment and other receivables consist of the following:
				April 30,	December	December
					31,	31,
				2012	2012	2013
				HK$	HK$	HK$
	Prepaid insurance			1,067	833	912
	Prepaid electricity			380	426	11
	Prepaid renovation			1,188	1,188	355
	Rental deposits / prepaid rent			7,825	7,618	6,223
	Deposit for the import processing arrangement			314	320	2,986
	Loans to workers			5,506	5,217	8,348
	Other receivables			2,181	18,260	7,333
	Others			2,053	1,609	1,971
				20,514	35,471	28,139

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	5	Property, Plant and Equipment
	Property, plant and equipment consist of the following:
			April 30,		December		December
					31,		31,
			2012		2012		2013
			HK$		HK$		HK$
	Property, plant and equipment:
	Buildings			55,680		123,712		164,074
	Plant and machineries			793,044		263,618		326,767
	Furniture, fixtures and equipment			143,837		110,897		136,096
	Leasehold improvements			8,379		8,108		8,108
	Computer equipment			16,828		9,262		13,146
	Motor vehicles			11,018		8,618		10,095
	Moulds			22,714		8,231		-
				1,051,500		532,446		658,286
	Accumulated depreciation and amortization			-634,642		-139,519		-294,137
	Construction in progress			107,279		47,456		-
	Property, plant and equipment, net			524,137		440,383		364,149
	As of April 30, 2012 and December 31, 2012, construction in progress mainly represents the new factory building and the staff dormitory located in Shenzhen under construction.
	Depreciation and amortization of property, plant and equipment were HK$142,089, HK$155,668, HK$102,749 and HK$122,189 during the years ended April 30, 2011 and 2012 and the 8-month period ended December 31, 2012 and the year ended December 31, 2013, respectively.
	Property, plant and equipment recorded under capital leases consist of the following:
			April 30,		December		December
					31,		31,
			2012		2012		2013
			HK$		HK$		HK$
	Property, plant and equipment recorded under capital leases:
	Plant and machineries			5,362		-		-
	Accumulated depreciation and amortization			-3,915		-		-
	Property, plant and equipment recorded under capital leases, net			1,447		-		-
	Depreciation and amortization of property, plant and equipment recorded under capital leases were HK$4,725, HK$1,072, HK$nil and HK$nil for the years ended April 30, 2011 and 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31,2013, respectively.

Prepaid_Lease_Payments

Prepaid Lease Payments	12 Months Ended
	Dec. 31, 2013
Prepaid Lease Payments [Abstract]	'
Prepaid Lease Payments [Text Block]	'
	6	Prepaid Lease Payments
	As of April 30, 2012, December 31, 2012 and 2013, prepaid lease payments represented the prepayment of land use right for land located in Heyuan with an expiry date on March 26, 2054, and for another three pieces of lands located in Shenzhen with an expiry date on December 31, 2037, December 31, 2037 and February 28, 2040, respectively.
	Amortization of prepaid lease payments were HK$1,551, HK$1,551, HK$1,034 and HK$1,552 for the years ended April 30, 2011 and 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31, 2013, respectively.

Bank_Borrowings_and_Banking_Fa

Bank Borrowings and Banking Facilities	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	7	Bank Borrowings and Banking Facilities
	The subsidiaries of the Company have credit facilities with various banks representing import loans, hire purchase, trust receipt, documentary credits, loans and overdraft. As of April 30, 2012, December 31, 2012 and 2013, these facilities totaled HK$414,221, HK$340,140 and HK$420,200, of which HK$257,355, HK$243,248 and HK$332,248 were unused as of April 30, 2012, December 31, 2012 and 2013 respectively. These facilities are granted with the provision of corporate and personal guarantees jointly by the Company, a subsidiary and a director of the Company to the banks.
	As of April 30, 2012, December 31, 2012 and 2013, bank borrowings consist of HK$79,194 import loans and HK$77,672 bank loans, and HK$69,093 import loans and HK$27,799 bank loans, and HK$30,282 import loans and HK$57,500 bank loans, respectively. All of the outstanding balances were supported by the facilities mentioned above. Import loans were granted from seven, six and six banks as of April 30, 2012, December 31, 2012 and 2013, respectively as a kind of invoice financing with terms ranged from 3 to 6 months on top of the suppliers’ credit terms or invoice date. The interest margin thereon ranged from 1.25% to 2.20% per annum. Details of the bank loans were set out as follows:
	During the year ended April 30, 2012 and the 8-month period ended December 31, 2012, and the year ended December 31, 2013, Hang Seng Bank Limited granted the Company two loans including:
		(i)	A term loan of HK$40,000 which is repayable by 16 quarterly installments of HK$2,500 commencing on September 7, 2010 with repayment on demand clauses. The interest thereon is calculated based on 3.32% per annum (with interest rate swap selected). As of April 30, 2010, 2011, an amount of HK$35,000 and HK$25,000 was outstanding, respectively, which was fully paid on December 7, 2012.
		(ii)	A term loan of HK$17,500 which is repayable by 14 quarterly installments of HK$1,250 commencing on September 7, 2012 with repayment on demand clauses. The interest thereon is calculated based on 3.32% per annum (with interest rate swap selected). As of December 31, 2013, an amount of HK$7,500 was outstanding, which will be fully paid on June 6, 2016.
	During the year ended December 31, 2013, the Bank of Tokyo-Mitsubishi UFJ, Ltd. granted the Company a term loan of HK$50,000, bearing an interest rate of 1.5% per annum above HIBOR. As of December 31, 2013, an amount of HK$50,000 was outstanding which is repayable by 7 quarterly installments of HK$7,143 commencing on April 29, 2015.
	The weighted average interest rates on the bank loans for the years ended April 30, 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013 were 1.75%, 2.04% and 1.70 % per annum, respectively.

Capital_Lease_Obligations

Capital Lease Obligations	12 Months Ended
	Dec. 31, 2013
Capital Lease Obligations [Abstract]	'
Capital Lease Obligations [Text Block]	'
	8	Capital Lease Obligations
	The Company entered into capital leases for items of machinery. The Company has the option to purchase the leased machineries at prices that are expected to be sufficiently lower than the fair values of the leased assets at the end of the lease. The lease terms are for 4 to 5 years.
	The Company recorded these equipment at the present value of the total lease payments using a discount rate ranging from 4.47% to 6.31% as of April 30, 2012.
	Future minimum lease payments under these leases are as follows:
			April 30,	December	December
				31,	31,
			2012	2012	2013
			HK$	HK$	HK$
	Year ended April 30, 2012		306	-	-
	Year ended December 31, 2013		-	-	-
			306	-	-
	Less: Imputed interest		3	-	-
			303	-	-
	Less: Current portion of capital lease obligations		303	-	-
	Non-current portion of capital lease obligations		-	-	-
	The Company recorded interest expense of HK$609, HK$153, HK$380 and HK$Nil for the years ended April 30, 2011 and 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013, respectively.

Other_Payables_and_Accruals

Other Payables and Accruals	12 Months Ended
	Dec. 31, 2013
Other Payables and Accruals [Abstract]	'
Other Payables and Accruals [Text Block]	'
		9	Other Payables and Accruals
	Other payables and accruals consist of the following:
				April 30,	December 31,	December 31,
				2012	2012	2013
				HK$	HK$	HK$
	Accrued salaries, wages and bonus			37,353	33,303	28,561
	Accrued electricity and water			5,868	5,933	4,759
	Deposit received			21,446	23,664	23,375
	Provision for employees’ retirement benefit			12,175	15,835	20,416
	Accrued commission and bonus			7,354	7,412	8,640
	Accrued transportation expense			2,204	1,673	1,224
	Accrued audit and professional fees			3,395	3,068	2,568
	Accrued sundries expenses			16,201	14,118	11,341
	Other payables			4,010	3,162	12,446
	Derivative liabilities			811	418	54
	Others			4,292	7,129	3,224
				115,109	115,715	116,608

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
		10	Income Taxes
	The Company and its subsidiaries are subject to taxation in various jurisdictions including Hong Kong, PRC and Thailand. Pursuant to the rules and regulations of the Cayman Islands, the Company is not subject to any income tax in the Cayman Islands. The income of its subsidiaries which are incorporated in the BVI is not subject to taxation in the BVI under the current BVI law. Under the current Samoa law, subsidiary incorporated in Samoa is not subject to income tax as it has no business operations in Samoa. The subsidiary operating in Macao is exempted from income taxes as it is a qualified 58/99/M company. The subsidiaries operating in Thailand are subject to corporate income tax whereas Broadway Precision (Thailand) Co., Ltd. is exempted from corporate income tax for six years under Board of Investment privilege, and Broadway Industries (Thailand) Co., Ltd. is subject to corporate income tax at a rate of 23% under Board of Investment. The subsidiaries operating in Hong Kong and the PRC are subject to income taxes as described below.
	The provision for current income taxes of the subsidiaries operating in Hong Kong has been calculated by applying the rate of taxation of 16.5%, 16.5% and 16.5% for the year ended April 30, 2012, and the 8-month period ended December 31, 2012 and the year ended December 31, 2013 to the estimated income earned in or derived from Hong Kong if applicable.
	Enterprise income tax in the PRC was generally charged at 33% of the assessable profit prior to January 1, 2008. From January 1, 2008, with the effect of the new PRC Enterprise Income Tax Law and Implementation Rules (“EIT Law”), the enterprise income tax rate on all domestic-invested enterprises and foreign investment enterprises in the PRC has been reduced from the rate of 33% to 25%, unless they qualify for certain exemptions.
	Two of the PRC subsidiaries, Dongguan Sun Chuen and Heyuan Sun Line, were granted with a five-year grandfather period in accordance with the PRC tax regulation, “GuoShuiFa (2007) No. 39” issued in 2007. Under the new EIT Law, they were entitled to a full exemption for two years starting from the first profit-making year followed by a 50% exemption for the next three years. For Dongguan Sun Chuen, the grandfather period started from January 1, 2007 as this was the first profit-making year and expired on December 31, 2011. Heyuan Sun Line had not been making profit so far, under the new EIT Law, the five-year grandfather period was deemed started on January 1, 2008 and expired on December 31, 2012.
	For years prior to January 1, 2013, Dongguan Sun Line Processing Factory was operated pursuant to the processing agreement entered into between Sun Line Industrial Limited, which is incorporated in Hong Kong, and the PRC counterparty approved by Dongguan City Foreign Trade and Economic Cooperation Bureau.
	Under the processing agreement, Sun Line Industrial Limited was not considered by local tax authorities to be doing business in China. Accordingly, it was not subject to local taxes in China. The PRC counterparty was responsible for paying taxes it incurred as a result of its operation under the processing agreement. By the end of December 2012, Sun Line Industrial Limited ceased Dongguan operations so that the Dongguan operations are no longer conducted through the PRC counterparty.
	In accordance with the Hong Kong Inland Revenue Departmental (“IRD”) Interpretation and Practice Note No. 21, 50% of the related income for the year arising in Hong Kong under the processing agreement has been determined is not subject to Hong Kong profits tax. The calculation of Hong Kong Profits Tax has been based on such tax relief.
	Prior to December 2011, the operations of our Shenzhen Broadway Processing Factory were conducted pursuant to a processing agreement entered into between one of our former subsidiaries, Broadway Industrial Holdings Limited (“Broadway Industrial (BVI)”), incorporated in BVI, and a PRC counterparty approved by Shenzhen City Baoan District Economic Development Bureau. In December 2011, Broadway Precision Technology Ltd., another of our wholly-owned subsidiaries incorporated in BVI, took up the role of Broadway Industrial (BVI) under the processing agreement. Operations of Shenzhen Broadway Processing Factory ceased as the processing agreement came to an end in December 2012.
	Due to the complexity involved with certain tax matters, the Company has engaged an independent tax advisor to perform assessment in accordance with FASB ASC 740 “Income Taxes” during the year. The Company’s liability for income taxes includes the liability for unrecognized tax benefits, interest and penalty as estimated which relate to tax years still subject to review by taxing authorities. Review periods remain open until the statute of limitations has passed.
	Uncertain tax positions of all PRC subsidiaries have been also assessed and in the opinion of the independent tax advisor, there are no significant uncertain tax positions except for the transactions in between the PRC subsidiaries and their holding companies being subject to transfer pricing rulings in the PRC. The Company has evaluated the possibility of being charged with the under pricing arrangement by the relevant authorities. Accordingly, provision has been made for the estimated transfer pricing tax liabilities.
	The Company recognizes interest expense and penalties related to income tax matters in interest and penalties expense within income tax expense. The sum of accrued interest or penalties accrued on the consolidated balance sheets accumulated to HK$1,409 on the consolidated balance sheets as at December 31, 2013. The Company had no significant unrecognized tax benefits at December 2012 and December 2013.
	As of April 30, 2012, December 31, 2012 and 2013, board of directors considered that the Company had accounted for the uncertain tax positions affecting its consolidated financial position, results of operations or cash flows, and will continue to evaluate for any uncertain position in future. The Company’s tax positions related to open tax years are subject to examination by the relevant tax authorities.
	The provision for income taxes consists of the following:
				Year ended April 30,		8-month	Year ended
						Period	December 31,
						ended
						December
						31,
				2011	2012	2012	2013
				HK$	HK$	HK$	HK$
	Current tax
	- Hong Kong			2,695	2,985	1,800	23,550
	- PRC			30,411	13,826	4,276	3,429
	- Other countries			-	-	-	609
	Deferred tax			-	-	-2,732	-23,854
				33,106	16,811	3,344	3,734
	Reconciliations between the provision for income taxes computed by applying the Hong Kong profits tax to income before income tax expense are as follows:
				Year ended April 30,		8-month	Year ended
						Period	December 31,
						ended
						December
						31,
				2011	2012	2012	2013
				HK$	HK$	HK$	HK$
	Provision for income taxes at Hong Kong profits tax rate			3,842	2,990	1,747	18,095
	Effect of different tax rates in other jurisdictions			42,800	13,676	1,544	-5,456
	Effect of income not chargeable for tax purpose			-70,292	-21	-6	-661
	Effect of expenses not deductible for tax purpose			56,740	818	19	12
	Tax effect of unused tax losses not recognized			16	-	40	-
	Tax effect of tax losses utilized			-	-	-	-593
	Over provision in previous years			-	-652	-	-7,663
				33,106	16,811	3,344	3,734
	The components of deferred tax (liability)/asset recognized are as follows:
				April 30,	December	December
					31,	31,
				2012	2012	2013
				HK$	HK$	HK$
	Deferred tax (liability)/asset:
	Net operating loss carry forwards			-	-	-
	Reversal/(Accelerated) tax depreciation			-15,156	-11,629	12,225
	Others			652	-	-
	Net deferred tax (liability)/asset			-14,504	-11,629	12,225

Net_Income_Per_Share

Net Income Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	11	Net Income Per Share
	The following table sets forth the computation of basic and diluted income per share for the years indicated:
			Year ended April 30,				8-month		Year ended
							Period		December 31,
							ended
							December
							31,
			2011		2012		2012		2013
			HK$		HK$		HK$		HK$
	Basic and diluted income per share
	Net income for the year – numerator			133,314		50,404		59,823		80,880
	Weighted average number of basic and diluted ordinary shares outstanding - denominator			7,891,754		15,944,233		14,303,544		13,503,623
	Basic and diluted income per share		HK$	16.9	HK$	3.2	HK$	4.2	HK$	6
	In connection with the reverse acquisition and recapitalization, all share and per share amounts have been retroactively restated.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
		12	Commitments and Contingencies
	Operating lease
	The Company leases a number of properties under operating leases. Rental expenses under operating leases for the years ended April 30, 2011 and 2012, and the 8-month period ended December 31, 2012 and the year ended December 31, 2013, were HK$19,639, HK$21,728, HK$16,480 and HK$23,238, respectively.
	As of December 31, 2013, the Company was obligated under non-cancellable operating leases minimum rentals as follows:
			HK$
	Years ending December 31,
	2014		13,282
	2015		2,278
	2016		2,193
	Thereafter		4,054
	Total minimum lease payments		21,807
	Capital commitment
	As of December 31, 2013, the Company had capital commitments for purchase of plant and machineries totaling HK$2,671, which are expected to be disbursed during the year ending December 31, 2014.
	Bonus Plan
	The Company has established a bonus plan for the management/executive officers. Pursuant to the plan, in order for any bonus to be paid, the Company must achieve an annual net profit (excluding any extraordinary items) of HK$78,000 in any fiscal year, which is refer to as the “Net Profit Target”. If the Net Profit Target is achieved in any fiscal year, a pool of 4% of any amount over the Net Profit Target will be set aside to provide bonuses to the management/executive officers. Of the bonus pool that is created, Kin Sun Sze-To, Chin Hien Tan and Ho Leung Ning would currently be entitled to 32%, 24% and 24%, respectively, of the available bonus, with the remaining amount being made available for distribution to the remaining officers, subject to adjustment at the discretion of the board. Payment of any bonuses under the plan will be in cash or ordinary shares (to be purchased in the open market), at the board’s sole discretion. The plan had taken effect beginning with the fiscal year ended April 30, 2012. No bonuses were provided under the plan for the year ended April 30, 2012 and for the 8-month period ended December 31, 2012, as the Company did not meet the Net Profit Target for the year ended April 30, 2012 and there were only eight months operations for the 8-month period ended December 31, 2012.
	The Company will pay bonus in cash according to the bonus plan for the year ended December 31, 2013 as Net Profit Target was met for the year.

Employee_Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Pension and Other Postretirement Benefits Disclosure [Text Block]	'
		13	Employee Benefits
	The Company contributes to a defined contribution retirement benefit plan under the Mandatory Provident Fund Schemes Ordinance, for all of its employees who are eligible to participate in the MPF Scheme. The total MPF contributions were HK$418, HK$429, HK$330 and HK$518 for the years ended April 30, 2011 and 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013, respectively.
	Full time employees of the PRC entities participate in a government mandated multi-employer defined contribution plan pursuant to which certain pension benefits, medical care, unemployment insurance, employee housing fund and other welfare benefits are provided to employees. The total provisions for such employee benefits were HK$21,249, HK$32,928, HK$21,550 and HK$33,053 for the years ended April 30, 2011 and 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013, respectively.

Statutory_Reserve_Appropriatio

Statutory Reserve Appropriation for PRC Subsidiaries	12 Months Ended
	Dec. 31, 2013
Statutory Reserve Appropriation For Prc Subsidiaries [Abstract]	'
Statutory Reserve Appropriation For Prc Subsidiaries [Text Block]	'
		14	Statutory Reserve Appropriation for PRC Subsidiaries
	Pursuant to the laws and regulations applicable to the PRC, the Company’s wholly foreign owned subsidiaries must make appropriations from after-tax profit to non-distributable reserves funds including: (i) the statutory surplus reserve and; (ii) the statutory public welfare fund. Subject to the law applicable to foreign invested enterprises in the PRC, they were required annual appropriations of the general reserve fund no less than 10% of after-tax profit (as determined under accounting principles generally accepted in the PRC at each year-end). These reserve funds can only be used for specific purposes of enterprise expansion and staff welfare and are not distributable as cash dividends. Dongguan Sun Chuen has made appropriation at 10% of its accumulated after-tax profit up to its PRC year ended December 31, 2009 in May 31, 2011, while it has been operating at loss thereafter. For other PRC subsidiaries, there is no appropriation be made as a result of their after-tax losses incurred in these periods.

Warrants_and_Unit_Purchase_Opt

Warrants and Unit Purchase Options	12 Months Ended
	Dec. 31, 2013
Warrants and Unit Purchase Options [Abstract]	'
Warrants and Unit Purchase Options [Text Block]	'
		15	Warrants and Unit Purchase Options
	On November 25, 2009, the Company sold 3,600,000 Units at an offering price of U.S.$10.00 per Unit. Each Unit consisted of one ordinary share, U.S.$0.001 par value, of the Company and one Redeemable Purchase Warrant (“Warrants”). Each Warrant entitles the holder to purchase from the Company one ordinary share at an exercise price of U.S.$11.50 commencing upon the completion of the Business Combination, December 16, 2010 and expiring November 18, 2014.
	The Company may redeem the Warrants, at a price of U.S.$0.01 per Warrant upon 30 days notice while the Warrants are exercisable, only in the event that the last sale price of the ordinary shares is at least U.S.$17.50 per share for any 20 trading days within a 30 trading day period ending on the third day prior to the date on which notice of redemption is given. If the Company redeems the Warrants as described above, management will have the option to require any holder that wishes to exercise his Warrant to do so on a “cashless basis.’' In such event, the holder would pay the exercise price by surrendering his Warrants for that number of ordinary shares equal to the quotient obtained by dividing (X) the product of the number of ordinary shares underlying the Warrants, multiplied by the difference between the exercise price of the Warrants and the “fair market value” (defined below) by (Y) the fair market value. The “fair market value” shall mean the average reported last sale price of the ordinary shares for the 10 trading days ending on the third trading day prior to the date on which the notice of redemption is sent to holders of Warrants. In accordance with the warrant agreement relating to the Warrants sold and issued in the Offering, the Company is only required to use its best efforts to maintain the effectiveness of the registration statement covering the Warrants. The Company will not be obligated to deliver securities, and there are no contractual penalties for failure to deliver securities, if a registration statement is not effective at the time of exercise. Additionally, in the event that a registration is not effective at the time of exercise, the holder of such Warrant shall not be entitled to exercise such Warrant and in no event (whether in the case of a registration statement not being effective or otherwise) will the Company be required to net cash settle the warrant exercise. Consequently, the Warrants may expire unexercised and unredeemed.
	The Company agreed to pay the underwriters in the Offering an underwriting discount of 7.0% of the gross proceeds of the Offering. However, the underwriters had agreed that 4.0% of the underwriting discounts would not be payable unless and until the Company completed a Business Combination and had waived their right to receive such payment upon the Company's liquidation if it was unable to complete a Business Combination. The underwriters subsequently agreed to waive their deferred discounts upon consummation of the Business Combination with Plastec described above. The Company also issued a unit purchase option, for U.S.$100, to Cohen & Company Securities, LLC (“Cohen Securities”), the representative of the underwriters in the Offering, and its designees to purchase 360,000 Units (10% of the total number of units sold in the Offering) at an exercise price of U.S.$15.00 per Unit (150% of the public offering price). The Units issuable upon exercise of this option are identical to the Units sold in the Offering. This option became exercisable on December 16, 2010 expires November 18, 2014. The Company accounted for the fair value of the unit purchase option, net of the receipt of the U.S.$100 cash payment, as an expense of the Offering resulting in a charge directly to shareholders' equity. The Company estimated the fair value of this unit purchase option, as of the date of issuance, was approximately U.S.$2.14 per unit using a Black-Scholes option-pricing model.
	The fair value of the unit purchase option granted to the underwriter was estimated as of the date of grant using the following assumptions: (1) expected volatility of 35%, (2) risk-free interest rate of 2.59% and (3) expected life of 5 years. The unit purchase option may be exercised for cash or on a “cashless” basis, at the holder’s option (except in the case of a forced cashless exercise upon the Company’s redemption of the Warrants, as described above), such that the holder may use the appreciated value of the unit purchase option (the difference between the exercise prices of the unit purchase option and the underlying Warrants and the market price of the Units and underlying ordinary shares) to exercise the unit purchase option without the payment of cash.
	The Company will have no obligation to net cash settle the exercise of the unit purchase option or the Warrants underlying the unit purchase option. The holder of the unit purchase option will not be entitled to exercise the unit purchase option or the Warrants underlying the unit purchase option unless a registration statement covering the securities underlying the unit purchase option is effective or an exemption from registration is available. If the holder is unable to exercise the unit purchase option or underlying Warrants, the unit purchase option or Warrants, as applicable, will expire worthless.
	As of April 30, 2012, December 31, 2012 and 2013, there were 4,781,122, 4,781,122 and 4,696,122 warrants outstanding. Each warrant entitles the holder to purchase from the Company one ordinary share at an exercise price of U.S.$11.50 commencing upon the consummation of the Merger, that is December 16, 2010 and expiring November 18, 2014. Among the outstanding warrants, the Company has the option to redeem 3,600,000 units of warrants at a price of U.S.$0.01 per warrant upon 30 days notice while the warrants are exercisable, only in the event that the last sale price of the ordinary shares is at least U.S.$17.50 per share for any 20 trading days within a 30 trading day period ending on the third day prior to the date on which notice of redemption is given. No warrant was exercised before the end of the reporting period. At the close of business of March 16, 2012, 2,418,878 out of 7,200,000 warrants then outstanding held in escrow on account of our initial shareholders were automatically repurchased and cancelled pursuant to Amendment No.2 to the Stock Escrow Agreement dated as of December 16, 2011.
	Unit Purchase Options (“UPOs”) were granted to Cohen & Company Securities, LLC and its designees to purchase 360,000 units at an exercise price of U.S.$15.00 per unit. Each unit issuable upon exercise of the UPOs consists of one ordinary share and one warrant. The UPOs became exercisable on December 16, 2010 expiring on November 18, 2014. The UPOs may be exercised for cash or on a “cashless” basis, at the holder’s option, such that the holder may use the appreciated value of the UPOs to exercise the unit purchase option without the payment of cash. No UPOs were converted before the end of the reporting period. The Company repurchased 70,375 UPOs on April 23, 2012. Outstanding UPOs as of April 30, 2012, December 31, 2012 and 2013 were 289,625, 289,625 and 289,625 respectively.
	For the years ended April 30, 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013, potential ordinary shares of 4,781,122, 4,781,122 and 4,696,122 shares related to warrants and 579,250, 579,250 and 579,250 shares related to UPOs, retroactively and respectively are excluded from the computation of diluted net income per share as their exercise prices were higher than the average market price.

Financial_Instruments_and_Deri

Financial Instruments and Derivatives	12 Months Ended
	Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]	'
Financial Instruments Disclosure [Text Block]	'
	16	Financial Instruments and Derivatives
	The Company adopted FASB ASC 820 “Fair Value Measurements and Disclosures” to measure its assets and liabilities. The fair value of a financial instrument is defined as the exchange price that would be received from an asset or paid to transfer a liability (as exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Except for the interest rate swap contracts described below, the carrying amounts of financial assets and liabilities, such as cash and cash equivalents, trade receivables, deposits, prepayment and other receivables, other current assets, trade payables, and other current liabilities, approximate at their fair values because of the short maturity of these instruments and market rates of interest.
	As a result of the various floating rate bank borrowings being obtained during the period to support the Company's expansion, the Company entered into two interest rate swap contracts with two commercial banks to reduce the exposure to variability in future cash flows attributable to a portion of its borrowings. The Company did not use these derivative financial instruments for speculative or trading purpose, nor did it hold or issue leveraged derivative financial instruments. As of April 30, 2012 and December 31, 2012, the fair value of the two interest rate swap contracts amounted to HK$811 and HK$418, respectively. As of December 31, 2013, there was one interest rate swap contract outstanding and amounted to HK$54. This was included in other payables and accruals in current liabilities. The outstanding interest rate swap contract will expire on September 8, 2014, with its notional amount of HK$17,500 as of December 31, 2013. The provision of the contract provides that the Company will pay the commercial banks a fixed rate of 2.07% p.a. and the commercial bank will pay the Company a variable rate equal to three-month HIBOR, which was 0.40%. The interest rate swap contracts were not designated as a hedging instrument under derivative accounting guidance, and gains and losses from changes in its fair value were therefore included in interest expenses. These interest rate swap contracts are classified as Level 2 in the fair value hierarchy under FASB ASC 820. The fair value of the interest rate swap contracts is arrived at by discounting the present value of the difference between the contractual swap rate and the current market swap rates on April 30, 2012, December 31, 2012 and 2013, respectively, utilizing the notional amounts and the remaining terms of the swap contracts.
	The following table summarizes the Company’s fair value of outstanding derivatives:
			Consolidated	April 30,		December		December
			Balance Sheet			31,		31,
			Presentation	2012		2012		2013
				HK$		HK$		HK$
	Derivatives not designated
	ashedging instruments
	Fair value of interest rate swap		Other payables		811		418		54
	contracts		and accruals
	The impact on net income from derivatives activity for the years ended April 30, 2011, 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31, 2013 are as follows:
			Presentation of	Year ended April 30,				8-month		Year ended
			gain or					Period		December
			loss recognized					ended		31,
								December
								31,
			on derivatives	2011		2012		2012		2013
				HK$		HK$		HK$		HK$
	Derivatives not
	designated as hedging
	instruments
	Interest rate swap		Changes in fair		2,254		215		271		42
	contracts		value of
			derivatives
			included in
			administrative
			expenses

Operating_risks

Operating risks	12 Months Ended
	Dec. 31, 2013
Risks and Uncertainties [Abstract]	'
Concentration Risk Disclosure [Text Block]	'
	17	Operating risks
	Concentrations of Major Suppliers
	Three major suppliers provided approximately 27.5%, 27.4%, 23.3% and 29.0% of the Company’s purchases of raw materials which are mainly resins for the years ended April 30, 2011 and 2012 and the 8-month period ended December 31, 2012 and the year ended December 31, 2013 respectively. A substantial percentage of the Company’s trade payables are due to these suppliers which accounted for 21.7%, 13.9% and 12.8% of the total accounts payables as of April 30, 2012, December 31, 2012 and 2013.
	Concentrations of Major Customers
	A substantial percentage of the Company’s sales are made to two customers and are typically sold on an open account basis. The sales to the two major customers accounted for 23.4% and 33.3%, 18.7% and 35.6%, 13.7% and 36.4%, and 6.8% and 44.4% of the total net sales for the years ended April 30, 2011, 2012 and 8-month period ended December 31, 2012 and the year ended December 31, 2013, respectively.
	Concentrations of Credit Risk
	The largest trade receivables balances from the five customers as of April 30, 2012, December 31, 2012 and 2013 respectively accounted for 65.3%, 66.7% and 34.4% of total trade receivables of the time. The Company has not experienced any significant difficulty in collecting its trade receivables in the past and is not aware of any financial difficulties being experienced by it major customers. There were bad debt expenses of HK$nil, HK$nil, HK$nil and HK$nil for the years ended April 30, 2011, 2012 and 8-month period ended December 31, 2012 and year ended December 31, 2013, respectively.

Operating_Segment_and_Geograph

Operating Segment and Geographical Information	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
		18	Operating Segment and Geographical Information
	The Company uses the management approach model for segment reporting. The management approach model is based on the way a company's management organizes segments within the company for making operating decisions and assessing performance. The Company consists of one reportable business segment which is provision of integrated plastic manufacturing services. All of the Company’s sales are from the manufacturing processes which are conducted in PRC and Thailand. The Company’s sales to customers by geographic destination are analyzed as follows:
			Year ended April 30,				8-month		Year ended
							Period		December
							ended		31
							December
							31,
			2011		2012		2012		2013
			HK$		HK$		HK$		HK$
	Asia-Pacific Region			852,062		742,327		462,837		482,725
	Europe			466,315		542,410		380,062		573,102
	The United States			5,156		6,486		90,989		111,288
				1,323,533		1,291,223		933,888		1,167,115
	The location of the Company’s identifiable assets is as follows:
			April 30		December		December
					31,		31,
			2012		2012		2013
			HK$		HK$		HK$
	PRC			723,210		616,777		598,889
	Hong Kong			459,029		494,033		478,696
	Macau			8,348		39,225		10,243
	Thailand			3,142		27,396		62,899
	United States			-		1,711		4,094
				1,193,729		1,179,142		1,154,821

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	19	Subsequent Events
	The Company disposed of a subsidiary, namely Heyuan Sun Line Industrial Limited (PRC) on March 3, 2014 for a consideration of RMB35 million (equivalent to approximately HK$43.75 million).
	On April 10, 2014, the Company announced that its Board of Directors had declared a one-time cash dividend of U.S.$0.20 per share for the year ended December 31, 2013 payable on May 09, 2014 to the shareholders of record as of April 25, 2014.
	The Company has evaluated all other subsequent events through April 23, 2014, the date these consolidated financial statements were issued, and determined that there were no other subsequent events or transaction, apart from the above described events, that required recognition or disclosures in the financial statements.

Change_in_Fiscal_Year_end

Change in Fiscal Year end	12 Months Ended
	Dec. 31, 2013
Fiscal Period End [Abstract]	'
Schedule Of Change In Fiscal Period End Disclosure [Text Block]	'
	20	Change in Fiscal Year end
	On September 11, 2012, the Company determined to change its fiscal year end from April 30 to December 31. The change in fiscal year end was made so that the Company’s fiscal year end would coincide with all the Company’s operating subsidiaries in the People’s Republic of China.  The figures below for the 8-month period ended December 31, 2011 and year ended December 31, 2012 have not been audited and are presented for comparative purposes only.
			8-month				Year ended December 31,
			Period ended December 31,
			2011		2012		2012		2013
			HK$		HK$		HK$		HK$
			(Unaudited)		(Audited)		(Unaudited)		(Audited)
	Revenues			911,294		933,888		1,313,818		1,167,115
	Cost of revenues			-801,413		-807,104		-1,144,971		-899,400
	Gross profit			109,881		126,784		168,847		267,715
	Operating expenses, net
	Selling, general and administrative expenses			-56,498		-66,330		-94,743		-166,969
	Other income			1,600		6,266		7,098		2,508
	Write-off of property, plant and equipment			-690		-4,058		-4,058		-14,920
	Gain/(loss) on disposal of property, plant and equipment			829		1,898		2,007		-2,836
	Total operating expenses, net			-54,759		-62,224		-89,696		-182,217
	Income from operations			55,122		64,560		79,151		85,498
	Interest income			172		166		212		276
	Interest expense			-1,880		-1,559		-2,374		-1,160
	Income before income tax expense			53,414		63,167		76,989		84,614
	Income tax expense			-13,379		-3,344		-6,777		-3,734
	Net income			40,035		59,823		70,212		80,880
	Other comprehensive income
	Foreign currency translation adjustment			7,157		-990		-911		3,377
	Comprehensive income attributable to Plastec Technologies, Ltd.			47,192		58,833		69,301		84,257
	Net income per share
	Weighted average number of ordinary shares			16,540,951		14,303,544		14,446,515		13,503,623
	Weighted average number of diluted ordinary shares			16,540,951		14,303,544		14,446,515		13,503,623
	Basic income per share attributable to Plastec Technologies, Ltd.		HK$	2.4	HK$	4.2	HK$	4.9	HK$	6
	Diluted income per share attributable to Plastec Technologies, Ltd.		HK$	2.4	HK$	4.2	HK$	4.9	HK$	6

Condensed_financial_informatio

Condensed financial information of Plastec Technologies, Ltd.	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	'
	21	Condensed financial information of Plastec Technologies, Ltd.
	The condensed financial statements of Plastec Technologies, Ltd. have been prepared in accordance with accounting principles generally accepted in the United States of America.
	Balance Sheets
			April 30,		December 31,		December 31,
			2012		2012		2013
			HK$		HK$		HK$
	Assets
	Current assets
	Cash and cash equivalents			28,980		23,787		31,048
	Amounts due from subsidiaries			-		-		100,056
	Prepaid expenses			574		-		-
	Total current assets			29,554		23,787		131,104
	Investment in subsidiaries			1		1		1
	Total assets			29,555		23,788		131,105
	Liabilities and shareholders’ equity
	Current liabilities
	Account payable and accrued liabilities			369		369		609
	Due to fellow subsidiaries			66,017		62,012		-
	Tax payable			-		-		1,378
	Total current liabilities			66,386		62,381		1,987
	NET CURRENT ASSETS/(LIABILITIES)			-36,831		-38,593		129,118
	TOTAL ASSETS AND LIABILITIES			-36,831		-38,593		129,118
	Shareholders’ equity
	Ordinary shares (U.S.$0.001 par value; 100,000,000 authorized, 14,352,903, 14,292,228 and 12,938,128 shares issued and outstanding as of April 30, 2012 and December 31, 2012 and 2013, respectively)			112		112		101
	Additional paid-in capital			-35,502		-38,341		-101,735
	Retained earnings			-1,441		-364		230,752
	Total shareholders’ equity			-36,831		-38,593		129,118
	Statements of operations and comprehensive income/(loss)
			Year ended April 30,				8-month		Year ended
							Period ended		December 31,
							December 31,
			2011		2012		2012		2013
			HK$		HK$		HK$		HK$
	Revenues			-		-		-		224,758
	Other incomes			152		4,803		3,323		12,018
	Administrative expenses			-11,474		-4,163		-2,243		-4,281
	Finance costs			-		-		-3		-
	Income/(loss) before income tax expense			-11,322		640		1,077		232,495
	Income tax expense			-		-		-		-1,379
	Total comprehensive income /(loss)			-11,322		640		1,077		231,116
	Statements of cash flows
			Year ended April 30,				8-month		Year ended
							Period ended		December 31,
							December 31,
			2011		2012		2012		2013
			HK$		HK$		HK$		HK$
	Cash flows from operating activities
	Net income/(loss)			-11,322		640		1,077		231,116
	Change in operating assets and liabilities
	Prepaid expenses			-47		-272		574		-
	Deferred offering costs			-230		-		-		-
	Accounts payable and accrued liabilities			-		-		1		239
	Income tax			-		-		-		1,378
	Net cash (used in)/provided by operating activities			-11,599		368		1,652		232,733
	Cash flows from investing activities
	Investment to subsidiary			-1		-		-		-
	Net cash used in investing activities			-1		-		-		-
	Change flows from financing activities
	Recapitalization on reverse acquisition			12,084		-		-		-
	Proceeds from due to subsidiaries			148		65,868		-		-
	Repayment of due to subsidiaries			-		-		-4,005		-162,068
	Proceeds used in repurchase of shares and warrants			-		-92,026		-2,840		-63,404
	Cash withdrawn from trust account			280,852		-		-		-
Proceeds used in share redemption			-227,448		-		-		-
Net cash provided by/(used in)financing activities			65,636		-26,158		-6,845		-225,472
Net increase/(decrease) in cash and cash equivalents			54,036		-25,790		-5,193		7,261
Cash and cash equivalents, beginning of year/period			734		54,770		28,980		23,787
Cash and cash equivalents, end of year/period			54,770		28,980		23,787		31,048

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Consolidation, Policy [Policy Text Block]	'
	Principles of consolidation
	The consolidated financial statements, prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”), include the assets, liabilities, revenues, expenses and cash flows of all subsidiaries. All significant intercompany balances, transactions and cash flows are eliminated on consolidation.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	'
	Foreign currency translation
	The functional currency of the Company is United States Dollar. The functional currency of the subsidiaries other than the subsidiaries in the PRC and the Thailand is Hong Kong dollar. The subsidiaries in the PRC and Thailand have their local currency, Renminbi, Thai Baht as their functional currencies.
	In the individual financial statements of the consolidated entities, foreign currency transactions are translated into the functional currency of the individual entity using the exchange rates prevailing at the dates of the transactions. At the reporting date, monetary assets and liabilities denominated in foreign currencies are translated at the foreign exchange rates ruling at the reporting date. Foreign exchange gains and losses resulting from the settlement of such transactions and from the reporting date retranslation of monetary assets and liabilities are recognized in the consolidated statement of income. Aggregate net foreign currency transaction gain (loss) were (HK$1,164), HK$10,127, HK$2,102 and (HK$8,206) for the years ended April 30, 2011, 2012 and the 8-month period ended December 31, 2012 and for the year ended December 31, 2013, respectively.
	Non-monetary items carried at fair value that are denominated in foreign currencies are retranslated at the rates prevailing on the date when the fair value was determined and are reported as part of the fair value gain or loss. Non-monetary items that are measured in terms of historical cost in a foreign currency are not retranslated.
	In the consolidated financial statements, all individual financial statements originally presented in a currency different from the Company’s reporting currency have been converted into Hong Kong dollars. Assets and liabilities have been translated into Hong Kong dollars at the closing rates at the reporting date. Income and expenses have been converted into the Hong Kong dollars at the exchange rates ruling at the transaction dates, or at the average rates over the reporting period provided that the exchange rates do not fluctuate significantly. Any differences arising from this procedure have been recognized in other comprehensive income and accumulated separately in the shareholders’ equity.
Use of Estimates, Policy [Policy Text Block]	'
	Use of estimates
	The preparation of consolidated financial statements in conformity with the US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The most significant estimates relate to allowances for doubtful accounts, inventory valuation, useful lives of property, plant and equipment, valuation allowance for deferred tax assets and contingencies. Actual results could differ from those estimates made by management.
Cash and Cash Equivalents, Policy [Policy Text Block]	'
	Cash and cash equivalents
	Cash and cash equivalents include cash at bank and in hand and demand deposits with banks with original maturities of three months or less that are readily convertible into known amounts of cash and which are subject to an insignificant risk of changes in value.
Receivables, Policy [Policy Text Block]	'
	Trade receivables
	Trade receivables are stated at the amount management expects to collect from balances outstanding at reporting period end. Based on management’s assessment of the credit history with customers having outstanding balances and current relationships with them, it has concluded that realization losses on balances outstanding at reporting period end will be immaterial.
Premiums Receivable, Allowance for Doubtful Accounts, Estimation Methodology, Policy [Policy Text Block]	'
	Allowance for doubtful account
	The Company regularly monitors and assesses the risk of not collecting amounts owed to the Company by customers. This evaluation is based upon a variety of factors including: ongoing credit evaluations of its customers’ financial condition, an analysis of amounts current and past due along with relevant history and facts particular to the customer. Trade receivables are written off if reasonable collection efforts are not successful.
Inventory, Policy [Policy Text Block]	'
	Inventories
	Inventories are stated at the lower of cost or market. Cost is determined on using the first-in first-out method. Work-in-progress and finished goods comprises of raw materials, direct labour and overhead associated with the manufacturing process. Write down of potentially obsolete or slow-moving inventory are recorded based on management’s analysis of inventory levels.
Property, Plant and Equipment, Policy [Policy Text Block]	'
	Property, plant and equipment
	Property, plant and equipment, other than construction in progress, are stated at acquisition cost less accumulated depreciation and impairment losses. The cost of an asset comprises its purchase price and any directly attributable costs of bringing the asset to its working condition and location for its intended use.
	Depreciation is provided to write off the cost less their residual values over their estimated useful lives, using the straight-line method, at the following rates per annum:
	Buildings		5%
	Plant and machineries		20%
	Furniture, fixtures and equipment		20%-33.33%
	Leasehold improvements		20%-33.33%
	Computer equipment		33.33%-50%
	Motor vehicles		20%
	Moulds		33.33%-92%
	The assets’ estimated residual values, depreciation methods and estimated useful lives are reviewed, and adjusted if appropriate, at each reporting date.
	Construction in progress represents assets in the course of construction for production or for its own use purpose. It is stated at cost less any impairment loss and is not depreciated. Cost includes direct costs incurred during the periods on construction, installation and testing plus interest charges arising from borrowings used to finance these assets during the construction period, if any. Construction in progress is reclassified to the appropriate category of property, plant and equipment and depreciation commences when the construction work is completed and the asset is ready for use.
	The gain or loss arising on retirement or disposal is determined as the difference between the sales proceeds and the carrying amount of the asset and is recognized in the consolidated statement of income.
	All other costs, such as repairs and maintenance are charged to the operations during the financial period in which they are incurred.
Prepaid Lease Payments and Lease Financing, Policy [Policy Text Block]	'
	Prepaid lease payments
	Upfront payments made to acquire land held under an operating lease are stated at costs less accumulated amortization and any accumulated impairment losses. The determination if an arrangement is or contains a lease and the lease is an operating lease is detailed as below. Amortization is calculated on a straight line basis over the term of the lease/right of use except where an alternative basis is more representative of the time pattern of benefits to be derived by the Company from use of the land.
Lease, Policy [Policy Text Block]	'
	Leases
	Leases are classified at the inception date as either a capital lease or an operating lease. For the lessee, a lease is a capital lease if any of the following conditions exist: a) ownership is transferred to the lessee by the end of the lease term, b) there is a bargain purchase option, c) the lease term is at least 75% of the property’s estimated remaining economic life or d) the present value of the minimum lease payments at the beginning of the lease term is 90% or more of the fair value of the leased property to the lessor at the inception date. A capital lease is accounted for as if there was an acquisition of an asset and an incurrence of an obligation at the inception of the lease. All other leases are accounted for as operating leases. The Company has both capital leases and operating leases in the periods presented.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	'
	Valuation of long-lived assets
	The Company periodically evaluates the carrying value of long-lived assets to be held and used when events and circumstances warrant such a review. The carrying value of a long-lived asset is considered impaired when the anticipated undiscounted cash flow from such asset is separately identifiable and is less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair market value of the long-lived asset. Fair market value is determined primarily using the anticipated cash flows discounted at a rate commensurate with the risk involved. Losses on long-lived assets to be disposed of are determined in a similar manner, except that fair market values are reduced for the cost to dispose.
Revenue Recognition, Policy [Policy Text Block]	'
	Revenue recognition
	Sales of goods are recognized when goods are shipped, title of goods sold has passed to the purchaser, the price is fixed or determinable as stated on the sales contract, and its collectability is reasonably assured. Customers do not have a general right of return on products shipped. The Company permits the return of damaged or defective products and accounts for these returns as deduction from sales. Products returns to the Company were insignificant during past years.
Comprehensive Income, Policy [Policy Text Block]	'
	Comprehensive income
	The Company presents comprehensive income in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 220 “Comprehensive Income”. FASB ASC 220 states that all items that are required to be recognized under accounting standards as components of comprehensive income be reported in the consolidated financial statements. The components of comprehensive income were the net income for the periods and the foreign currency translation adjustments.
Shipping and Handling Cost, Policy [Policy Text Block]	'
	Shipping and handling cost
	Shipping and handling costs related to the delivery of finished goods are included in selling, general and administrative expenses. For the years ended April 30, 2011 and 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31, 2013, shipping and handling costs were HK$15,549, HK$17,421, HK$12,474 and HK$14,630 respectively
Income Tax, Policy [Policy Text Block]	'
	Income taxes
	The Company accounts for income taxes in accordance with FASB ASC 740 “Income taxes”, which requires an entity to recognize deferred tax assets and liabilities using the asset and liability method. Under this method, deferred income taxes are recognized for all temporary differences at enacted rates and classified as current or non-current based upon the classification of the related asset or liability in the consolidated financial statements. A valuation allowance is provided to reduce the amount of deferred tax assets if it is considered more likely than not that some portion of, or all, the deferred tax asset will not be realized.
	FASB ASC 740 clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements, and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. It also provides accounting guidance on de-recognition, classification, interest or penalties, accounting in interim periods, disclosure and transition. Interest and penalties from tax assessments, if any, are included in income taxes in the consolidated statement of income.
Pension and Other Postretirement Plans, Policy [Policy Text Block]	'
	Post-retirement and post-employment benefits
	The Company contributes to a defined contribution retirement benefit plan under the Mandatory Provident Fund Schemes Ordinance for all of its Hong Kong employees who are eligible to participate in the Mandatory Provident Fund (“MPF”) Scheme. Contributions are made based on a percentage of the employees’ basic salaries.
	The employees of the Company’s subsidiaries which operate in the PRC are required to participate in a central pension scheme operated by the local municipal government. PRC subsidiaries are required to contribute certain percentage of its payroll costs to the central pension scheme.
	Contributions are recognized as an expense in consolidated statement of income as employees render services during the period. The Company's obligations under these plans are limited to the fixed percentage contributions payable.
Earnings Per Share, Policy [Policy Text Block]	'
	Net income per share
	Basic net income per share is computed by dividing net income available to ordinary shares by the weighted average number of ordinary shares outstanding during the period. Diluted net income per share gives effect to all dilutive potential ordinary shares outstanding during the period. The weighted average number of ordinary shares outstanding is adjusted to include the number of additional ordinary shares that would have been outstanding if the dilutive potential ordinary shares had been issued. In computing the dilutive effect of potential ordinary shares, the average stock price for the period is used in determining the number of treasury shares assumed to be purchased with the proceeds from the exercise of options.
Derivatives, Policy [Policy Text Block]	'
	Derivatives
	Derivatives are carried at fair value and are reported as other current assets when the Company has a contractual right to receive cash from the counterparty that are potentially favorable to the Company and as accrued and other current liabilities where the Company has a contractual obligation to deliver cash to a counterparty that are potentially unfavorable to the Company.
	If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and the hedged item are recognized in the consolidated statement of income and comprehensive income. If the derivative is designated as a cash flow hedge, changes in the fair value of the derivative are recorded in other comprehensive income and are recognized in the consolidated statement of income and comprehensive income when the hedged item affects net income. If a derivative does not qualify as a hedge, it is marked to fair value through the consolidated statement of income and comprehensive income.
Fair Value Measurement, Policy [Policy Text Block]	'
	Fair Value Measurements
	The Company has adopted FASB ASC 820 “Fair Value Measurements and Disclosures” which defines fair value, establishes a framework for measuring fair value in the US GAAP, and expands disclosures about fair value measurements. It does not require any new fair value measurements, but provides guidance on how to measure fair value by providing a fair value hierarchy used to classify the source of the information.
	Its establishes a three-level valuation hierarchy of valuation techniques based on observable and unobservable inputs, which may be used to measure fair value and include the following:
		Level 1 -	Quoted prices in active markets for identical assets or liabilities.
		Level 2 -	Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
		Level 3 -	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.
	Classification within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recently issued accounting pronouncements
	In January 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-01, Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. This ASU clarifies that ordinary trade receivables and receivables are not in the scope of ASU No. 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Specifically, ASU 2011-11 applies only to derivatives, repurchase agreements and reverse purchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with specific criteria contained in the FASB Accounting Standards Codification™ (Codification) or subject to a master netting arrangement or similar agreement. The FASB undertook this clarification project in response to concerns expressed by U.S. stakeholders about the standard’s broad definition of financial instruments. After the standard was finalized, companies realized that many contracts have standard commercial provisions that would equate to a master netting arrangement, significantly increasing the cost of compliance at minimal value to financial statement users. An entity is required to apply the amendments in ASU 2013-01 for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the required disclosures retrospectively for all comparative periods presented. The effective date is the same as the effective date of ASU 2011-11.
	In February 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This ASU improves the transparency of reporting these reclassifications. Other comprehensive income includes gains and losses that are initially excluded from net income for an accounting period. Those gains and losses are later reclassified out of accumulated other comprehensive income into net income. The amendments in this ASU do not change the current requirements for reporting net income or other comprehensive income in financial statements. All of the information that this ASU requires already is required to be disclosed elsewhere in the financial statements under U.S. GAAP.
	The new amendments will require an organization to:
	⋅ Present (either on the face of the statement where net income is presented or in the notes) the effects on the line items of net income of significant amounts reclassified out of accumulated other comprehensive income - but only if the item reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period.
	⋅ Cross-reference to other disclosures currently required under U.S. GAAP for other reclassification items (that are not required under U.S. GAAP) to be reclassified directly to net income in their entirety in the same reporting period. This would be the case when a portion of the amount reclassified out of accumulated other comprehensive income is initially transferred to a balance sheet account (e.g., inventory for pension-related amounts) instead of directly to income or expense.
	The amendments apply to all public and private companies that report items of other comprehensive income. Public companies are required to comply with these amendments for all reporting periods (interim and annual). A private company is required to meet the reporting requirements of the amended paragraphs about the roll forward of accumulated other comprehensive income for both interim and annual reporting periods. However, private companies are only required to provide the information about the effect of reclassifications on line items of net income for annual reporting periods, not for interim reporting periods. The amendments are effective for reporting periods beginning after December 15, 2012, for public companies and are effective for reporting periods beginning after December 15, 2013, for private companies. Early adoption is permitted.
	In February 2013, FASB issued Accounting Standards Update (ASU) No. 2013-03, Financial Instruments (Topic 825). This ASU clarifies the scope and applicability of a disclosure exemption that resulted from the issuance of Accounting Standards Update No. 2011-04,Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. The amendment clarifies that the requirement to disclose"the level of the fair value hierarchy within which the fair value measurements are categorized in their entirety (Level 1, 2, or 3)" does not apply to nonpublic entities for items that are not measured at fair value in the statement of financial position, but for which fair value is disclosed. This ASU is the final version of Proposed Accounting Standards Update 2013-200—Financial Instruments (Topic 825) which has been deleted. The amendments are effective upon issuance.
	In February 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-04, Liabilities (Topic 405): Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date. This ASU provides guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this ASU is fixed at the reporting date, except for obligations addressed within existing guidance in U.S. GAAP. The guidance requires an entity to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this ASU also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. The amendments in this ASU are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. For nonpublic entities, the amendments are effective for fiscal years ending after December 15, 2014, and interim periods and annual periods thereafter. The amendments in this ASU should be applied retrospectively to all prior periods presented for those obligations resulting from joint and several liability arrangements within the ASU’s scope that exist at the beginning of an entity’s fiscal year of adoption. An entity may elect to use hindsight for the comparative periods (if it changed its accounting as a result of adopting the amendments in this ASU) and should disclose that fact. Early adoption is permitted.
	In March 2013, FASB has issued Accounting Standards Update (ASU) No. 2013-05, Foreign Currency Matters (Topic 830). This ASU resolve the diversity in practice about whether Subtopic 810-10, Consolidation—Overall, or Subtopic 830-30, Foreign Currency Matters—Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. In addition, the amendments in this Update resolve the diversity in practice for the treatment of business combinations achieved in stages (sometimes also referred to as step acquisitions) involving a foreign entity. This ASU is the final version of Proposed Accounting Standards Update EITF11Ar—Foreign Currency Matters (Topic 830), which has been deleted. The amendments in this Update are effective prospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2013. For nonpublic entities the amendments in this Update are effective prospectively for the first annual period beginning after December 15, 2014, and interim and annual periods thereafter. The amendments should be applied prospectively to derecognition events occurring after the effective date. Prior periods should not be adjusted. Early adoption is permitted. If an entity elects to early adopt the amendments, it should apply them as of the beginning of the entity’s fiscal year of adoption.
	In April 2013, FASB Accounting Standards Update 2013-07,Presentation of Financial Statements (Topic 205): Liquidation Basis of Accounting. This ASU clarifies when an entity should apply the liquidation basis of accounting. In addition, the guidance provides principles for the recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. Liquidation is the process by which a company converts its assets to cash or other assets and settles its obligations with creditors in anticipation of ceasing all of its activities. An organization in liquidation must prepare its financial statements using a basis of accounting that communicates information to users of those financial statements to enable those users to develop expectations about how much the organization will have available for distribution to investors after disposing of its assets and settling its obligations. The ASU requires organization to prepare its financial statements using the liquidation basis of accounting when liquidation is “imminent.” Liquidation is considered imminent when the likelihood is remote that the organization will return from liquidation and either: (a) a plan for liquidation is approved by the person or persons with the authority to make such a plan effective and the likelihood is remote that the execution of the plan will be blocked by other parties; or (b) a plan for liquidation is being imposed by other forces (e.g., involuntary bankruptcy). In cases where a plan for liquidation was specified in the organization’s governing documents at inception (e.g., limited-life entities), the organization should apply the liquidation basis of accounting only if the approved plan for liquidation differs from the plan for liquidation that was specified in the organization’s governing documents. The ASU requires financial statements prepared using the liquidation basis to present relevant information about a company’s resources and obligations in liquidation, including the following:
	⋅ The organization’s assets measured at the amount of the expected cash proceeds from liquidation, including any items it had not previously recognized under U.S. GAAP that it expects to either sell in liquidation or use in settling liabilities (e.g., trademarks).
	⋅ The organization’s liabilities as recognized and measured in accordance with existing guidance that applies to those liabilities.
	⋅ Accrual of the costs it expects to incur and the income it expects to earn during liquidation, including any anticipated disposal costs.
	This ASU is effective for interim and annual reporting periods beginning after December 15, 2013, with early adoption permitted.
	In July 2013, The FASB has published Accounting Standards Update 2013-09, Fair Value Measurement (Topic 820): Deferral of the Effective Date of Certain Disclosures for Nonpublic Employee Benefit Plans in Update No. 2011-04. This ASU defers indefinitely certain disclosures about investments held by nonpublic employee benefit plans in their plan sponsors’ own nonpublic equity securities. The ASU was approved by the FASB on June 12, 2013. ASU No. 2013-09, Fair Value Measurement (Topic 820): Deferral of the Effective Date of Certain Disclosures for Nonpublic Employee Benefit Plans in Update No. 2011-04, applies to disclosures of certain quantitative information about the significant unobservable inputs used in Level 3 fair value measurement for investments held by certain employee benefit plans.

Organization_and_Business_Back1

Organization and Business Background (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Schedule of Subsidiary of Limited Liability Company or Limited Partnership, Description [Table Text Block]	'
	As of December 31, 2013, details of the Company’s subsidiaries are as follows:
	Name	Date of	Place of	Percentage of	Principal activities
		incorporation/	incorporation/	equity
		establishment	registration	interest
			and operation	attributable
				to the
				Company
	Allied Sun Corporation Limited	20-Aug-08	Hong Kong	100%	Trading and investment holding
	Broadway Industrial Holdings Limited	22-Mar-06	Hong Kong	100%	Trading and investment holding
	Broadway Industries (Thailand) Co., Ltd.	2-Aug-11	Thailand	100%	Trading
	Broadway Manufacturing Company Limited	17-Aug-05	BVI	100%	Property investment
	Broadway Precision (Shenzhen) Co., Ltd.	3-Aug-12	PRC	100%	Manufacturing of plastic parts and utensils
	百汇精密塑胶模具(深圳)有限公司
	Broadway Precision (Thailand) Co., Ltd.	10-May-12	Thailand	100%	Manufacturing of plastic parts and utensils
	Broadway Precision Co. Limited (previously named, Sun Luck Trading Limited)	18-Mar-10	Hong Kong	100%	Management services
	Broadway Precision Industrial (Kunshan) Ltd.	26-Aug-08	PRC	100%	Manufacturing of plastic parts and utensils
	昆山海汇精密模具工业 有限公司
	Broadway Precision Technology Limited	28-Apr-11	Hong Kong	100%	Dormant
	Name	Date of	Place of	Percentage of	Principal activities
		incorporation/	incorporation/	equity
		establishment	registration	interest
			and operation	attributable
				to the
				Company
	Broadway Precision Technology Ltd.	8-Feb-11	BVI	100%	Trading and investment holding
	百汇精密科技有限公司
	(previously named, Pan Sino International Limited)
	Dongguan Sun Chuen Plastic Products Co., Ltd. (“Dongguan Sun Chuen”)	8-Dec-04	PRC	100%	Manufacturing of plastic parts and utensils
	东莞新川塑胶制品有限公司
	Heyuan Sun Line Industrial Ltd. (“Heyuan Sun Line”)	20-Feb-04	PRC	100%	Dormant
	河源新丽工业有限公司
	Plastec International Holdings Limited	18-Feb-04	BVI	100%	Investment holding
	Source Wealth Limited	18-Mar-10	Hong Kong	100%	Investment holding
	Sun Line Industrial Limited	27-Apr-93	Hong Kong	100%	Investment holding
	Broadway (Macao Commercial Offshore) Company Limited (Previously	13-Aug-04	Macau	100%	Trading
	named Sun Line (Macao Commercial Offshore) Company Limited)
	Sun Line Precision Industrial (Zhuhai) Ltd.	10-Oct-08	PRC	100%	Dormant
	珠海新丽模具有限公司
	Name	Date of	Place of	Percentage of	Principal activities
		incorporation/	incorporation/	equity
		establishment	registration	interest
			and operation	attributable
				to the
				Company
	Sun Line Precision Ltd.	10-Mar-04	BVI	100%	Trading and investment holding
	(previously named, “Fast Achieve Enterprises Ltd.”)
	Sun Line Services Limited	8-Jan-13	Hong Kong	100%	Management services
	Sun Ngai Spraying and Silk Print Co., Ltd.	25-Jul-95	BVI	100%	Dormant
	Sun Ngai Spraying and Silk Print (HK) Co., Limited	22-Mar-06	Hong Kong	100%	Dormant
	Sun Terrace Industries Limited	2-Mar-04	BVI	100%	Investment holding
	Viewmount Developments Limited	12-Nov-13	BVI	100%	Investment holding
Schedule Of Net Income [Table Text Block]	'
	if Plastec has net income as defined in the Amended and Restated Merger Agreement in the following amounts for the indicated years ending April 30 below:
	Year ending April 30,	Net Income
		HK$
	2011	130,700
	2012	176,000
	2013	250,000
Schedule Of Recapitalization In Connection With Reverse Merger To Net Assets Acquired [Table Text Block]	'
	The net assets of the Company as of December 16, 2010 were as follows:
	Net assets acquired:	HK$
	Cash	58,160
	Accounts payable and accrued liabilities	-1,524
		56,636
Schedule of Treasury Stock by Class [Table Text Block]	'
	The following table summarizes the Company’s repurchases of ordinary shares and publicly held warrants under the 2011 and 2013 Repurchase Programs:
	Period*	Total number of	Total number of
		publicly held	ordinary shares
		warrants purchased	purchased as part of
		as part of the	the publicly
		publicly announced	announced
		repurchase plans	repurchase plans
	Feb-12	-	4,000
	Jun-12	-	60,675
	Jan-13	-	600,000
	Jun-13	80,000	94,100
	Aug-13	5,000	-
	Sep-13	-	73,990
	Oct-13	-	586,010
	* Each period covers the full calendar month indicated. There were no repurchases made in omitted months. Repurchases for September 2013 and earlier months were under the 2011 Repurchase Program. Repurchases for October 2013 were under the 2013 Repurchase Program.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Schedule of Public Utility Property, Plant, and Equipment [Table Text Block]	'
	Depreciation is provided to write off the cost less their residual values over their estimated useful lives, using the straight-line method, at the following rates per annum:
	Buildings	5%
	Plant and machineries	20%
	Furniture, fixtures and equipment	20%-33.33%
	Leasehold improvements	20%-33.33%
	Computer equipment	33.33%-50%
	Motor vehicles	20%
	Moulds	33.33%-92%

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
	Inventories consist of the following:
		April 30,	December 31,	December 31,
		2012	2012	2013
		HK$	HK$	HK$
	Raw materials	35,519	30,971	27,607
	Work in progress	60,241	38,904	52,443
	Finished goods	32,627	27,592	27,008
		128,387	97,467	107,058

Deposits_Prepayment_and_Other_1

Deposits, Prepayment and Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	'
	Deposits, prepayment and other receivables consist of the following:
		April 30,	December 31,	December 31,
		2012	2012	2013
		HK$	HK$	HK$
	Prepaid insurance	1,067	833	912
	Prepaid electricity	380	426	11
	Prepaid renovation	1,188	1,188	355
	Rental deposits / prepaid rent	7,825	7,618	6,223
	Deposit for the import processing arrangement	314	320	2,986
	Loans to workers	5,506	5,217	8,348
	Other receivables	2,181	18,260	7,333
	Others	2,053	1,609	1,971
		20,514	35,471	28,139

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
	Property, plant and equipment consist of the following:
		April 30,		December 31,		December 31,
		2012		2012		2013
		HK$		HK$		HK$
	Property, plant and equipment:
	Buildings		55,680		123,712		164,074
	Plant and machineries		793,044		263,618		326,767
	Furniture, fixtures and equipment		143,837		110,897		136,096
	Leasehold improvements		8,379		8,108		8,108
	Computer equipment		16,828		9,262		13,146
	Motor vehicles		11,018		8,618		10,095
	Moulds		22,714		8,231		-
			1,051,500		532,446		658,286
	Accumulated depreciation and amortization		-634,642		-139,519		-294,137
	Construction in progress		107,279		47,456		-
	Property, plant and equipment, net		524,137		440,383		364,149
Property Plant and Equipment Excluding Capital Leased Assets [Table Text Block]	'
	Property, plant and equipment recorded under capital leases consist of the following:
		April 30,		December 31,		December 31,
		2012		2012		2013
		HK$		HK$		HK$
	Property, plant and equipment recorded under capital leases:
	Plant and machineries		5,362		-		-
	Accumulated depreciation and amortization		-3,915		-		-
	Property, plant and equipment recorded under capital leases, net		1,447		-		-

Capital_Lease_Obligations_Tabl

Capital Lease Obligations (Tables)	12 Months Ended
	Dec. 31, 2013
Capital Lease Obligations [Abstract]	'
Schedule Of Future Minimum Lease Payments For Capital Leases [Table Text Block]	'
	Future minimum lease payments under these leases are as follows:
		April 30,	December 31,	December 31,
		2012	2012	2013
		HK$	HK$	HK$
	Year ended April 30, 2012	306	-	-
	Year ended December 31, 2013	-	-	-
		306	-	-
	Less: Imputed interest	3	-	-
		303	-	-
	Less: Current portion of capital lease obligations	303	-	-
	Non-current portion of capital lease obligations	-	-	-

Other_Payables_and_Accruals_Ta

Other Payables and Accruals (Tables)	12 Months Ended
	Dec. 31, 2013
Other Payables and Accruals [Abstract]	'
Schedule of Accrued Liabilities [Table Text Block]	'
	Other payables and accruals consist of the following:
		April 30,	December 31,	December 31,
		2012	2012	2013
		HK$	HK$	HK$
	Accrued salaries, wages and bonus	37,353	33,303	28,561
	Accrued electricity and water	5,868	5,933	4,759
	Deposit received	21,446	23,664	23,375
	Provision for employees’ retirement benefit	12,175	15,835	20,416
	Accrued commission and bonus	7,354	7,412	8,640
	Accrued transportation expense	2,204	1,673	1,224
	Accrued audit and professional fees	3,395	3,068	2,568
	Accrued sundries expenses	16,201	14,118	11,341
	Other payables	4,010	3,162	12,446
	Derivative liabilities	811	418	54
	Others	4,292	7,129	3,224
		115,109	115,715	116,608

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
	The provision for income taxes consists of the following:
		Year ended April 30,		8-month	Year ended
				Period	December 31,
				ended
				December
				31,
		2011	2012	2012	2013
		HK$	HK$	HK$	HK$
	Current tax
	- Hong Kong	2,695	2,985	1,800	23,550
	- PRC	30,411	13,826	4,276	3,429
	- Other countries	-	-	-	609
	Deferred tax	-	-	-2,732	-23,854
		33,106	16,811	3,344	3,734
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	'
	Reconciliations between the provision for income taxes computed by applying the Hong Kong profits tax to income before income tax expense are as follows:
		Year ended April 30,		8-month	Year ended
				Period	December 31,
				ended
				December
				31,
		2011	2012	2012	2013
		HK$	HK$	HK$	HK$
	Provision for income taxes at Hong Kong profits tax rate	3,842	2,990	1,747	18,095
	Effect of different tax rates in other jurisdictions	42,800	13,676	1,544	-5,456
	Effect of income not chargeable for tax purpose	-70,292	-21	-6	-661
	Effect of expenses not deductible for tax purpose	56,740	818	19	12
	Tax effect of unused tax losses not recognized	16	-	40	-
	Tax effect of tax losses utilized	-	-	-	-593
	Over provision in previous years	-	-652	-	-7,663
		33,106	16,811	3,344	3,734
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	'
	The components of deferred tax (liability)/asset recognized are as follows:
		April 30,	December	December
			31,	31,
		2012	2012	2013
		HK$	HK$	HK$
	Deferred tax (liability)/asset:
	Net operating loss carry forwards	-	-	-
	Reversal/(Accelerated) tax depreciation	-15,156	-11,629	12,225
	Others	652	-	-
	Net deferred tax (liability)/asset	-14,504	-11,629	12,225

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
	The following table sets forth the computation of basic and diluted income per share for the years indicated:
		Year ended April 30,				8-month		Year ended
						Period ended		December 31,
						December 31,
		2011		2012		2012		2013
		HK$		HK$		HK$		HK$
	Basic and diluted income per share
	Net income for the year – numerator		133,314		50,404		59,823		80,880
	Weighted average number of basic and diluted ordinary shares outstanding - denominator		7,891,754		15,944,233		14,303,544		13,503,623
	Basic and diluted income per share	HK$	16.9	HK$	3.2	HK$	4.2	HK$	6

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	'
	As of December 31, 2013, the Company was obligated under non-cancellable operating leases minimum rentals as follows:
		HK$
	Years ending December 31,
	2014	13,282
	2015	2,278
	2016	2,193
	Thereafter	4,054
	Total minimum lease payments	21,807

Financial_Instruments_and_Deri1

Financial Instruments and Derivatives (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]	'
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	'
	The following table summarizes the Company’s fair value of outstanding derivatives:
		Consolidated	April 30,		December		December
		Balance Sheet			31,		31,
		Presentation	2012		2012		2013
			HK$		HK$		HK$
	Derivatives not designated
	ashedging instruments
	Fair value of interest rate swap	Other payables		811		418		54
	contracts	and accruals
Schedule of Price Risk Derivatives [Table Text Block]	'
	The impact on net income from derivatives activity for the years ended April 30, 2011, 2012 and for the 8-month period ended December 31, 2012 and for the year ended December 31, 2013 are as follows:
		Presentation of	Year ended April 30,				8-month		Year ended
		gain or					Period		December
		loss recognized					ended		31,
							December
							31,
		on derivatives	2011		2012		2012		2013
			HK$		HK$		HK$		HK$
	Derivatives not
	designated as hedging
	instruments
	Interest rate swap	Changes in fair		2,254		215		271		42
	contracts	value of
		derivatives
		included in
		administrative
		expenses

Operating_Segment_and_Geograph1

Operating Segment and Geographical Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	'
	The Company’s sales to customers by geographic destination are analyzed as follows:
		Year ended April 30,				8-month		Year ended
						Period ended		December 31
						December 31,
		2011		2012		2012		2013
		HK$		HK$		HK$		HK$
	Asia-Pacific Region		852,062		742,327		462,837		482,725
	Europe		466,315		542,410		380,062		573,102
	The United States		5,156		6,486		90,989		111,288
			1,323,533		1,291,223		933,888		1,167,115
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
	The location of the Company’s identifiable assets is as follows:
		April 30		December 31,		December 31,
		2012		2012		2013
		HK$		HK$		HK$
	PRC		723,210		616,777		598,889
	Hong Kong		459,029		494,033		478,696
	Macau		8,348		39,225		10,243
	Thailand		3,142		27,396		62,899
	United States		-		1,711		4,094

Change_in_Fiscal_Year_end_Tabl

Change in Fiscal Year end (Tables)	12 Months Ended
	Dec. 31, 2013
Fiscal Period End [Abstract]	'
Schedule Of Change In Fiscal Period End [Table Text Block]	'
	The figures below for the 8-month period ended December 31, 2011 and year ended December 31, 2012 have not been audited and are presented for comparative purposes only.
		8-month				Year ended December 31,
		Period ended December 31,
		2011		2012		2012		2013
		HK$		HK$		HK$		HK$
		(Unaudited)		(Audited)		(Unaudited)		(Audited)
	Revenues		911,294		933,888		1,313,818		1,167,115
	Cost of revenues		-801,413		-807,104		-1,144,971		-899,400
	Gross profit		109,881		126,784		168,847		267,715
	Operating expenses, net
	Selling, general and administrative expenses		-56,498		-66,330		-94,743		-166,969
	Other income		1,600		6,266		7,098		2,508
	Write-off of property, plant and equipment		-690		-4,058		-4,058		-14,920
	Gain/(loss) on disposal of property, plant and equipment		829		1,898		2,007		-2,836
	Total operating expenses, net		-54,759		-62,224		-89,696		-182,217
	Income from operations		55,122		64,560		79,151		85,498
	Interest income		172		166		212		276
	Interest expense		-1,880		-1,559		-2,374		-1,160
	Income before income tax expense		53,414		63,167		76,989		84,614
	Income tax expense		-13,379		-3,344		-6,777		-3,734
	Net income		40,035		59,823		70,212		80,880
	Other comprehensive income
	Foreign currency translation adjustment		7,157		-990		-911		3,377
	Comprehensive income attributable to Plastec Technologies, Ltd.		47,192		58,833		69,301		84,257
	Net income per share
	Weighted average number of ordinary shares		16,540,951		14,303,544		14,446,515		13,503,623
	Weighted average number of diluted ordinary shares		16,540,951		14,303,544		14,446,515		13,503,623
	Basic income per share attributable to Plastec Technologies, Ltd.	HK$	2.4	HK$	4.2	HK$	4.9	HK$	6
	Diluted income per share attributable to Plastec Technologies, Ltd.	HK$	2.4	HK$	4.2	HK$	4.9	HK$	6

Condensed_financial_informatio1

Condensed financial information of Plastec Technologies, Ltd. (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Schedule of Condensed Balance Sheet [Table Text Block]	'
	Balance Sheets
		April 30,		December 31,		December 31,
		2012		2012		2013
		HK$		HK$		HK$
	Assets
	Current assets
	Cash and cash equivalents		28,980		23,787		31,048
	Amounts due from subsidiaries		-		-		100,056
	Prepaid expenses		574		-		-
	Total current assets		29,554		23,787		131,104
	Investment in subsidiaries		1		1		1
	Total assets		29,555		23,788		131,105
	Liabilities and shareholders’ equity
	Current liabilities
	Account payable and accrued liabilities		369		369		609
	Due to fellow subsidiaries		66,017		62,012		-
	Tax payable		-		-		1,378
	Total current liabilities		66,386		62,381		1,987
	NET CURRENT ASSETS/(LIABILITIES)		-36,831		-38,593		129,118
	TOTAL ASSETS AND LIABILITIES		-36,831		-38,593		129,118
	Shareholders’ equity
	Ordinary shares (U.S.$0.001 par value; 100,000,000 authorized, 14,352,903, 14,292,228 and 12,938,128 shares issued and outstanding as of April 30, 2012 and December 31, 2012 and 2013, respectively)		112		112		101
	Additional paid-in capital		-35,502		-38,341		-101,735
	Retained earnings		-1,441		-364		230,752
	Total shareholders’ equity		-36,831		-38,593		129,118
Schedule of Condensed Income Statement [Table Text Block]	'
	Statements of operations and comprehensive income/(loss)
		Year ended April 30,				8-month		Year ended
						Period ended		December 31,
						December 31,
		2011		2012		2012		2013
		HK$		HK$		HK$		HK$
	Revenues		-		-		-		224,758
	Other incomes		152		4,803		3,323		12,018
	Administrative expenses		-11,474		-4,163		-2,243		-4,281
	Finance costs		-		-		-3		-
	Income/(loss) before income tax expense		-11,322		640		1,077		232,495
	Income tax expense		-		-		-		-1,379
	Total comprehensive income /(loss)		-11,322		640		1,077		231,116
Schedule of Condensed Cash Flow Statement [Table Text Block]	'
	Statements of cash flows
		Year ended April 30,				8-month		Year ended
						Period ended		December 31,
						December 31,
		2011		2012		2012		2013
		HK$		HK$		HK$		HK$
	Cash flows from operating activities
	Net income/(loss)		-11,322		640		1,077		231,116
	Change in operating assets and liabilities
	Prepaid expenses		-47		-272		574		-
	Deferred offering costs		-230		-		-		-
	Accounts payable and accrued liabilities		-		-		1		239
	Income tax		-		-		-		1,378
	Net cash (used in)/provided by operating activities		-11,599		368		1,652		232,733
	Cash flows from investing activities
	Investment to subsidiary		-1		-		-		-
	Net cash used in investing activities		-1		-		-		-
	Change flows from financing activities
	Recapitalization on reverse acquisition		12,084		-		-		-
	Proceeds from due to subsidiaries		148		65,868		-		-
	Repayment of due to subsidiaries		-		-		-4,005		-162,068
	Proceeds used in repurchase of shares and warrants		-		-92,026		-2,840		-63,404
	Cash withdrawn from trust account		280,852		-		-		-
	Proceeds used in share redemption		-227,448		-		-		-
	Net cash provided by/(used in)financing activities		65,636		-26,158		-6,845		-225,472
	Net increase/(decrease) in cash and cash equivalents		54,036		-25,790		-5,193		7,261
	Cash and cash equivalents, beginning of year/period		734		54,770		28,980		23,787
	Cash and cash equivalents, end of year/period		54,770		28,980		23,787		31,048

Organization_and_Business_Back2

Organization and Business Background (Details)	12 Months Ended
	Dec. 31, 2013
Allied Sun Corporation Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	20-Aug-08
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading and investment holding
Broadway Industrial Holdings Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	22-Mar-06
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading and investment holding
Broadway Industries (Thailand) Co Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	2-Aug-11
Place of incorporation/ registration and operation	'Thailand
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading
Broadway Manufacturing Company Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	17-Aug-05
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Property investment
Broadway Precision (Shenzhen) Co Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	3-Aug-12
Place of incorporation/ registration and operation	'PRC
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Manufacturing of plastic parts and utensils
Broadway Precision (Thailand) Co Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	10-May-12
Place of incorporation/ registration and operation	'Thailand
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Manufacturing of plastic parts and utensils
Broadway Precision Co Limited (Previously Named, Sun Luck Trading Limited) [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	18-Mar-10
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Management services
Broadway Precision Industrial (Kunshan) Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	26-Aug-08
Place of incorporation/ registration and operation	'PRC
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Manufacturing of plastic parts and utensils
Broadway Precision Technology Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	28-Apr-11
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Dormant
Broadway Precision Technology Ltd previously named, Pan Sino International Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	8-Feb-11
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading and investment holding
Dongguan Sun Chuen Plastic Products Co Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	8-Dec-04
Place of incorporation/ registration and operation	'PRC
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Manufacturing of plastic parts and utensils
Heyuan Sun Line Industrial Ltd (Heyuan Sun Line) [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	20-Feb-04
Place of incorporation/ registration and operation	'PRC
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Dormant
Plastec International Holdings Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	18-Feb-04
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Investment holding
Source Wealth Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	18-Mar-10
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Investment holding
Sun Line Industrial Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	27-Apr-93
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Investment holding
Broadway (Macao Commercial Offshore) Company Limited (Previously Named Sun Line (Macao Commercial Offshore) Company Limited) [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	13-Aug-04
Place of incorporation/ registration and operation	'Macau
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading
Sun Line Precision Industrial (Zhuhai) Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	10-Oct-08
Place of incorporation/ registration and operation	'PRC
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Dormant
Sun Line Precision Ltd (Previously Named, Fast Achieve Enterprises Ltd) [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	10-Mar-04
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Trading and investment holding
Sun Line Services Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	8-Jan-13
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Management services
Sun Ngai Spraying and Silk Print Co Ltd [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	25-Jul-95
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Dormant
Sun Ngai Spraying and Silk Print (Hk) Co Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	22-Mar-06
Place of incorporation/ registration and operation	'Hong Kong
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Dormant
Sun Terrace Industries Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	2-Mar-04
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Investment holding
Viewmount Development Limited [Member]	'
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]	'
Date of incorporation/ establishment	12-Nov-13
Place of incorporation/ registration and operation	'BVI
Percentage of equity interest attributable to the Company	100.00%
Principal activities	'Investment holding

Organization_and_Business_Back3

Organization and Business Background (Details 1) (HKD)	12 Months Ended
In Thousands, unless otherwise specified	Apr. 30, 2012
Organization And Business Background [Line Items]	'
2011	130,700
2012	176,000
2013	250,000

Organization_and_Business_Back4

Organization and Business Background (Details 2) (HKD)	Dec. 16, 2010
In Thousands, unless otherwise specified
Organization And Business Background [Line Items]	'
Cash	58,160
Accounts payable and accrued liabilities	-1,524
Net assets acquired	56,636

Organization_and_Business_Back5

Organization and Business Background (Details 3)

1 Months Ended

Oct. 31, 2013

Sep. 30, 2013

Aug. 31, 2013

Jun. 30, 2013

Jan. 31, 2013

Jun. 30, 2012

Feb. 29, 2012

Organization And Business Background [Line Items]

'

'

'

'

'

'

'

Total number of ordinary shares purchased

0

[1]

0

[1]

5,000

[1]

80,000

[1]

0

[1]

0

[1]

0

[1]

Total number of ordinary shares purchased as part of the publicly announced repurchase plan

586,010

[1]

73,990

[1]

0

[1]

94,100

[1]

600,000

[1]

60,675

[1]

4,000

[1]

[1]

Each period covers the full calendar month indicated. There were no repurchases made in omitted months. Repurchases for September 2013 and earlier months were under the 2011 Repurchase Program. Repurchases for October 2013 were under the 2013 Repurchase Program.

Organization_and_Business_Back6

Organization and Business Background (Details Textual) (USD $)

12 Months Ended

1 Months Ended

1 Months Ended

0 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Nov. 25, 2009

Aug. 06, 2010

Dec. 31, 2011

Nov. 30, 2011

Apr. 30, 2011

Sep. 13, 2010

Nov. 30, 2011

Sep. 25, 2013

Mar. 16, 2012

Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Amended and Restated Merger Agreement [Member]

Escrow Agreement [Member]

Repurchase Program 2011 [Member]

Repurchase Program 2013 [Member]

Organization And Business Background [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Entity Incorporation, Date Of Incorporation

27-Mar-08

'

'

'

'

'

'

'

'

'

'

'

Common Stock Shares Receivable Pursuant To Merger

'

'

'

'

16,948,053

'

'

'

'

'

'

'

Common stock, par or stated value per share (in dollars per share)

$0.00

$0.00

$0.00

$0.00

$0.00

'

'

'

'

'

'

'

Total Number Of Common Stock Shares Received Pursuant To Merger

'

'

'

'

'

'

'

'

16,778,571

'

'

'

Common Stock Shares Received On Closing Of Merger

'

'

'

'

'

'

'

'

7,054,583

'

'

'

Remaining Common Stock Issued

'

'

'

'

'

'

'

'

9,723,988

'

'

'

Remaining Common Stock Issued Year One

'

'

'

'

'

'

'

'

2,944,767

'

'

'

Remaining Common Stock Issued Year Two

'

'

'

'

'

'

'

'

3,389,610

'

'

'

Remaining Common Stock Issued Year Three

'

'

'

'

'

'

'

'

3,389,611

'

'

'

Common stock, shares issued

12,938,128

14,292,228

14,352,903

'

'

'

'

7,486,845

'

'

'

'

Conversion of Stock, Shares Converted

'

'

'

'

'

'

2,615,732

'

'

'

'

'

Average Conversion Of Stock Shares Converted Price Per Share

'

'

'

'

'

'

$10.30

'

'

'

'

'

Share repurchases (in shares)

'

'

'

'

'

1,570,000

'

'

'

'

'

'

Share redeemed and cancelled

'

'

'

'

'

$11,800

'

'

'

$5,000

$5,000

'

Share redeemed and cancelled (in shares)

'

'

'

'

'

'

'

'

'

'

'

806,293

Stock Repurchase Price Per Share

'

'

'

'

'

$7.50

'

'

'

'

'

'

Stock Repurchased and Retired Period Price Per Shares

'

'

'

'

'

'

'

'

'

'

'

$0.01

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details)	Dec. 31, 2013
Building [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	5.00%
Machinery and Equipment [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	20.00%
Furniture and Fixtures [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	33.33%
Furniture and Fixtures [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	20.00%
Leaseholds and Leasehold Improvements [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	33.33%
Leaseholds and Leasehold Improvements [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	20.00%
Computer Equipment [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	50.00%
Computer Equipment [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	33.33%
Vehicles [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	20.00%
Moulds [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	92.00%
Moulds [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Salvage Value, Percentage	33.33%

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Significant Accounting Policies [Line Items]	'	'	'	'
Foreign Currency Transaction Gain (Loss), Realized	2,102	-8,206	10,127	-1,164
Description of Lessee Leasing Arrangements, Capital Leases	'	'a) ownership is transferred to the lessee by the end of the lease term, b) there is a bargain purchase option, c) the lease term is at least 75% of the propertys estimated remaining economic life or d) the present value of the minimum lease payments at the beginning of the lease term is 90% or more of the fair value of the leased property to the lessor at the inception date	'	'
Shipping, Handling and Transportation Costs	12,474	14,630	17,421	15,549

Inventories_Details

Inventories (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Inventory [Line Items]	'	'	'
Raw materials	27,607	30,971	35,519
Work in progress	52,443	38,904	60,241
Finished goods	27,008	27,592	32,627
Inventory, Net	107,058	97,467	128,387

Inventories_Details_Textual

Inventories (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Inventory [Line Items]	'	'	'	'
Inventory Write-Down	4,108	7,037	6,920	6,095

Deposits_Prepayment_and_Other_2

Deposits, Prepayment and Other Receivables (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Deposits, Prepayment And Other Receivables [Line Items]	'	'	'
Prepaid insurance	912	833	1,067
Prepaid electricity	11	426	380
Prepaid renovation	355	1,188	1,188
Rental deposits / prepaid rent	6,223	7,618	7,825
Deposit for the import processing arrangement	2,986	320	314
Loans to workers	8,348	5,217	5,506
Other receivables	7,333	18,260	2,181
Others	1,971	1,609	2,053
Deposits, prepayment and other receivables	28,139	35,471	20,514

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	658,286	532,446	1,051,500
Accumulated depreciation and amortization	-294,137	-139,519	-634,642
Construction in progress	0	47,456	107,279
Property, plant and equipment, net	364,149	440,383	524,137
Building [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	164,074	123,712	55,680
Machinery and Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	326,767	263,618	793,044
Furniture and Fixtures [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	136,096	110,897	143,837
Leaseholds and Leasehold Improvements [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	8,108	8,108	8,379
Computer Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	13,146	9,262	16,828
Vehicles [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	10,095	8,618	11,018
Moulds [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Property, Plant and Equipment, Gross	0	8,231	22,714

Property_Plant_and_Equipment_D1

Property, Plant and Equipment (Details 1) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Property, plant and equipment recorded under capital leases:	'	'	'
Plant and machineries	0	0	5,362
Accumulated depreciation and amortization	0	0	-3,915
Property, plant and equipment recorded under capital leases, net	0	0	1,447

Property_Plant_and_Equipment_D2

Property, Plant and Equipment (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Property, Plant and Equipment [Line Items]	'	'	'	'
Depreciation And Amortization Capital Leased Assets	0	0	'	'
Property, Plant and Equipment [Member]	'	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'
Depreciation, Depletion and Amortization, Nonproduction	102,749	122,189	155,668	142,089
Depreciation And Amortization Capital Leased Assets	'	'	1,072	4,725

Prepaid_Lease_Payments_Details

Prepaid Lease Payments (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Prepaid Lease Payments [Line Items]	'	'	'	'	'
Lease Expiration Date	'	'	28-Feb-40	'	'
Amortization Of Prepaid Lease Payments	1,034	1,552	'	1,551	1,551
Shenzhen One [Member]	'	'	'	'	'
Prepaid Lease Payments [Line Items]	'	'	'	'	'
Lease Expiration Date	'	31-Dec-37	31-Dec-37	31-Dec-37	'
Shenzhen Two [Member]	'	'	'	'	'
Prepaid Lease Payments [Line Items]	'	'	'	'	'
Lease Expiration Date	'	31-Dec-37	31-Dec-37	31-Dec-37	'
Shenzhen Three [Member]	'	'	'	'	'
Prepaid Lease Payments [Line Items]	'	'	'	'	'
Lease Expiration Date	'	28-Feb-40	'	28-Feb-40	'
Heyuan [Member]	'	'	'	'	'
Prepaid Lease Payments [Line Items]	'	'	'	'	'
Lease Expiration Date	'	26-Mar-54	26-Mar-54	26-Mar-54	'

Bank_Borrowings_and_Banking_Fa1

Bank Borrowings and Banking Facilities (Details Textual)

8 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Apr. 30, 2011

Apr. 30, 2010

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

HKD

HKD

HKD

HKD

Maximum [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Hang Seng Bank Limited [Member]

Hang Seng Bank Limited [Member]

Hang Seng Bank Limited [Member]

Hang Seng Bank Limited [Member]

Hang Seng Bank Limited [Member]

Tokyo Mitsubishi Ufj Ltd [Member]

Term Loan One [Member]

Term Loan One [Member]

Term Loan One [Member]

Term Loan Two [Member]

Term Loan Two [Member]

Revolving Credit Facility [Member]

HKD

HKD

HKD

HKD

USD ($)

HKD

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from bank borrowings

220,809

195,214

379,465

464,651

'

'

'

'

'

'

40,000

'

'

17,500

'

'

Number Of Quarterly Installments

'

'

'

'

'

'

'

'

'

'

16

'

'

14

'

7

Installment Amount

'

'

'

'

'

'

'

'

'

'

2,500

'

'

1,250

'

7,143

Debt Instrument, Interest Rate Terms

'

'

'

'

'6

'6

'6

'3

'3

'3

'3.32% per annum (with interest rate swap selected).

'

'

'3.32% per annum (with interest rate swap selected).

'

'1.5% per annum above HIBOR

Loans Payable to Bank, Noncurrent

27,799

57,500

77,672

'

'

'

'

'

'

'

'

25,000

35,000

'

7,500

'

Line Of Credit Facility Revolving Loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000

Debt Instrument, Maturity Date

'

'

'

'

'

'

'

'

'

'

7-Dec-12

'

'

6-Jun-16

'

'

Total Credit Facilities With Banks

340,140

420,200

414,221

'

'

'

'

'

'

'

'

'

'

'

'

'

Unused Credit Facilities With Banks

243,248

332,248

257,355

'

'

'

'

'

'

'

'

'

'

'

'

'

Import Loans

69,093

30,282

79,194

'

'

'

'

'

'

'

'

'

'

'

'

'

Import Loans Interest Rate

'

'

'

'

2.20%

'

'

1.25%

'

'

'

'

'

'

'

'

Repayments of Lines of Credit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000

Weighted Average Interest Rate On Bank Loans

2.04%

1.70%

1.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital_Lease_Obligations_Deta

Capital Lease Obligations (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Capital Lease Obligations [Line Items]	'	'	'
Year ended April 30, 2012	0	0	306
Year ended December 31, 2013	0	0	0
Future Minimum Payments Gross	0	0	306
Less: Imputed interest	0	0	3
Future Minimum Payments Net	0	0	303
Less: Current portion of capital lease obligations	0	0	-303
Non-current portion of capital lease obligations	0	0	0

Capital_Lease_Obligations_Deta1

Capital Lease Obligations (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Capital Lease Obligations [Line Items]	'	'	'	'
Capital Lease Interest Expense	380	0	153	609
Minimum [Member]	'	'	'	'
Capital Lease Obligations [Line Items]	'	'	'	'
Capital Lease Term	'	'4 years	'	'
Lease Payments Discount Rate	'	'	4.47%	'
Maximum [Member]	'	'	'	'
Capital Lease Obligations [Line Items]	'	'	'	'
Capital Lease Term	'	'5 years	'	'
Lease Payments Discount Rate	'	'	6.31%	'

Other_Payables_and_Accruals_De

Other Payables and Accruals (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Other Payables And Accruals [Line Items]	'	'	'
Accrued salaries, wages and bonus	28,561	33,303	37,353
Accrued electricity and water	4,759	5,933	5,868
Deposit received	23,375	23,664	21,446
Provision for employees' retirement benefit	20,416	15,835	12,175
Accrued commission and bonus	8,640	7,412	7,354
Accrued transportation expense	1,224	1,673	2,204
Accrued audit and professional fees	2,568	3,068	3,395
Accrued sundries expenses	11,341	14,118	16,201
Other payables	12,446	3,162	4,010
Derivative liabilities	54	418	811
Others	3,224	7,129	4,292
Other Accrued Liabilities, Current	116,608	115,715	115,109

Income_Taxes_Details

Income Taxes (Details) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Current tax	'	'	'	'	'	'
- Hong Kong	1,800	'	23,550	'	2,985	2,695
- PRC	4,276	'	3,429	'	13,826	30,411
- Other countries	0	'	609	'	0	0
Deferred tax	-2,732	'	-23,854	'	0	0
Income Tax Expense (Benefit)	3,344	13,379	3,734	6,777	16,811	33,106

Income_Taxes_Details_1

Income Taxes (Details 1) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Income Taxes [Line Items]	'	'	'	'	'	'
Provision for income taxes at Hong Kong profits tax rate	1,747	'	18,095	'	2,990	3,842
Effect of different tax rates in other jurisdictions	1,544	'	-5,456	'	13,676	42,800
Effect of income not chargeable for tax purpose	-6	'	-661	'	-21	-70,292
Effect of expenses not deductible for tax purpose	19	'	12	'	818	56,740
Tax effect of unused tax losses not recognized	40	'	0	'	0	16
Tax effect of tax losses utilized	0	'	-593	'	0	0
Over provision in previous years	0	'	-7,663	'	-652	0
Income Tax Expense (Benefit)	3,344	13,379	3,734	6,777	16,811	33,106

Income_Taxes_Details_2

Income Taxes (Details 2) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Deferred tax (liability)/asset:	'	'	'
Net operating loss carry forwards	0	0	0
Reversal/(Accelerated) tax depreciation	12,225	-11,629	-15,156
Others	0	0	652
Net deferred tax (liability)/asset	12,225	-11,629	-14,504

Income_Taxes_Details_Textual

Income Taxes (Details Textual) (USD $)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
Income Taxes [Line Items]	'	'	'	'
Effective Income Tax Rate	16.50%	16.50%	'	16.50%
Percentage Of Tax Exemption	'	50.00%	50.00%	'
Income Tax Examination, Penalties and Interest Accrued	'	$1,409	'	'
Broadway Industries Thailand Co [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Effective Income Tax Rate	'	23.00%	'	'
Maximum [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Effective Income Tax Rate	'	33.00%	'	'
Minimum [Member]	'	'	'	'
Income Taxes [Line Items]	'	'	'	'
Effective Income Tax Rate	'	25.00%	'	'

Net_Income_Per_Share_Details

Net Income Per Share (Details) (HKD)	8 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Basic and diluted income per share	'	'	'	'	'	'
Net income for the year - numerator	59,823	40,035	80,880	70,212	50,404	133,314
Weighted average number of basic and diluted ordinary shares outstanding - denominator (in shares)	14,303,544	'	13,503,623	'	15,944,233	7,891,754
Basic and diluted income per share (in dollars per share)	4.2	'	6	'	3.2	16.9

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (HKD)	Dec. 31, 2013
In Thousands, unless otherwise specified
Commitments And Contingencies [Line Items]	'
2014	13,282
2015	2,278
2016	2,193
Thereafter	4,054
Total minimum lease payments	21,807

Commitments_and_Contingencies_2

Commitments and Contingencies (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Commitments And Contingencies [Line Items]	'	'	'	'
Operating Leases, Rent Expense	16,480	23,238	21,728	19,639
Capital Commitments	'	2,671	'	'
Annual Net Profit Target	'	78,000	78,000	'
Percentage Of Net Profit Target Utilization For Bonus	'	4.00%	4.00%	'
Kin Sun Sze To [Member]	'	'	'	'
Commitments And Contingencies [Line Items]	'	'	'	'
Percentage Of Bonus Entitled	'	32.00%	32.00%	'
Chin Hien Tan [Member]	'	'	'	'
Commitments And Contingencies [Line Items]	'	'	'	'
Percentage Of Bonus Entitled	'	24.00%	24.00%	'
Ho Leung Ning [Member]	'	'	'	'
Commitments And Contingencies [Line Items]	'	'	'	'
Percentage Of Bonus Entitled	'	24.00%	24.00%	'

Employee_Benefits_Details_Text

Employee Benefits (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Apr. 30, 2011
Employee Benefits [Line Items]	'	'	'	'
Pension Contributions	330	518	429	418
Employee Benefits and Share-based Compensation	21,550	33,053	32,928	21,249

Statutory_Reserve_Appropriatio1

Statutory Reserve Appropriation for PRC Subsidiaries (Details Textual)	12 Months Ended
	Dec. 31, 2009
Statutory Reserve Appropriation For PRC Subsidiaries [Line Items]	'
Statutory Reserve Appropriation For Prc Subsidiaries	10.00%

Warrants_and_Unit_Purchase_Opt1

Warrants and Unit Purchase Options (Details Textual) (USD $)

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Nov. 30, 2009

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Mar. 16, 2012

Nov. 25, 2009

Nov. 30, 2009

Nov. 25, 2009

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Apr. 23, 2012

Apr. 30, 2011

Dec. 16, 2010

Cohen Securities [Member]

Cohen Securities [Member]

Unit Purchase Options [Member]

Unit Purchase Options [Member]

Unit Purchase Options [Member]

Unit Purchase Options [Member]

Unit Purchase Options [Member]

Unit Purchase Options [Member]

Class of Warrant or Right [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Number of Securities Called by Warrants or Rights

'

'

'

'

'

3,600,000

'

'

'

'

'

'

'

'

Class of Warrant or Right, Exercise Price of Warrants or Rights

'

'

'

'

'

10

'

15

15

'

'

'

'

'

Common stock, par or stated value per share (in dollars per share)

'

$0.00

$0.00

$0.00

'

$0.00

'

'

'

'

'

'

'

'

Share Price

'

$11.50

'

'

'

$11.50

'

'

'

'

'

'

'

'

Investment Warrants Expiration Date Range Start

16-Dec-10

16-Dec-10

'

'

'

'

16-Dec-10

'

16-Dec-10

'

'

'

'

'

Investment Warrants Expiration Date Range End

18-Nov-14

18-Nov-14

'

'

'

'

18-Nov-14

'

18-Nov-14

'

'

'

'

'

Description Of Warrant Redeemption

'The Company may redeem the Warrants, at a price of U.S.$0.01 per Warrant upon 30 days notice while the Warrants are exercisable, only in the event that the last sale price of the ordinary shares is at least U.S.$17.50 per share for any 20 trading days within a 30 trading day period ending on the third day prior to the date on which notice of redemption is given.

'

'

'

'

'

'

'

'

'

'

'

'

'

Underwriters Discount Percentage

7.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Underwriters Discount Contingent Percentage

4.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Unit Purchase Option Price

$100

'

'

'

'

'

$100

'

'

'

'

'

'

'

Black Scholes Option Price

'

'

'

'

'

'

2.14

'

'

'

'

'

'

'

Fair Value Assumptions, Expected Volatility Rate

'

35.00%

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Assumptions, Risk Free Interest Rate

'

2.59%

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Assumptions, Risk Free Interest Rate

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

Class of Warrant or Right, Outstanding

'

4,696,122

4,781,122

4,781,122

7,200,000

'

'

'

4,696,122

4,781,122

4,781,122

'

'

'

Description Of Warrant Repurchase

'

'the outstanding warrants, the Company has the option to redeem 3,600,000 units of warrants at a price of U.S.$0.01 per warrant upon 30 days notice while the warrants are exercisable, only in the event that the last sale price of the ordinary shares is at least U.S.$17.50 per share for any 20 trading days within a 30 trading day period ending on the third day prior to the date on which notice of redemption is given.

'

'

'

'

'

'

'

'

'

'

'

'

Warrant Repurchased

'

'

'

'

2,418,878

'

'

'

'

'

'

'

'

'

Unit Purchase Options Outstanding

'

579,250

579,250

579,250

'

'

'

'

289,625

289,625

289,625

'

360,000

360,000

Repurchase Of Unit Purchase Options

'

'

'

'

'

'

'

'

'

'

'

70,375

'

'

Percentage Of Units Sold In Offering

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

Percentage Of Public Offering Price

'

'

'

'

'

'

150.00%

'

'

'

'

'

'

'

Financial_Instruments_and_Deri2

Financial Instruments and Derivatives (Details) (HKD)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
Derivatives, Fair Value [Line Items]	'	'	'
Derivative liabilities	54	418	811
Interest Rate Swap [Member]	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Consolidated Balance Sheet Presentation	'Other payables and accruals	'	'
Derivative liabilities	54	418	811

Financial_Instruments_and_Deri3

Financial Instruments and Derivatives (Details 1) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Financial Instruments And Derivatives [Line Items]	'	'	'	'	'	'
Selling, general and administrative expenses	-66,330	-56,498	-166,969	-94,743	-81,557	-83,584
Interest Rate Swap [Member]	'	'	'	'	'	'
Financial Instruments And Derivatives [Line Items]	'	'	'	'	'	'
Selling, general and administrative expenses	271	'	42	'	215	2,254
Description Of Types Of Hedging Instruments Used	'	'	'Changes in fair value of derivatives included in administrative expenses	'	'	'

Financial_Instruments_and_Deri4

Financial Instruments and Derivatives (Details Textual) (HKD)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
		Interest Rate Swap One [Member]	Interest Rate Swap Two [Member]	Interest Rate Swap Two [Member]
Derivative [Line Items]	'	'	'	'
Interest Rate Derivatives, at Fair Value, Net	'	54	418	811
Derivative, Maturity Date	'	8-Sep-14	'	'
Derivative, Notional Amount	'	17,500	'	'
Derivative, Description of Variable Rate Basis	'the commercial banks a fixed rate of 2.07% p.a. and the commercial bank will pay the Company a variable rate equal to three-month HIBOR, which was 0.40%.	'	'	'

Operating_risks_Details_Textua

Operating risks (Details Textual) (HKD)	8 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Supplier	'23.3	'29.0	'	'27.4	'27.5
Concentration Risk Accounts Payable	'	'12.8%	'13.9%	'21.7%	'
Concentration Risk Accounts Receivable	'	'34.4%	'66.7%	'65.3%	'
Provision for Doubtful Accounts	0	0	'	0	0
Customers One [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	13.70%	6.80%	'	18.70%	23.40%
Customers Two [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	36.40%	44.40%	'	35.60%	33.30%

Operating_Segment_and_Geograph2

Operating Segment and Geographical Information (Details) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Revenues	933,888	911,294	1,167,115	1,313,818	1,291,223	1,323,533
Asia Pacific Regions [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Revenues	462,837	'	482,725	'	742,327	852,062
Europe [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Revenues	380,062	'	573,102	'	542,410	466,315
The United States [Member]	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'
Revenues	90,989	'	111,288	'	6,486	5,156

Operating_Segment_and_Geograph3

Operating Segment and Geographical Information (Details 1) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]	'	'	'
Total assets	1,154,821	1,179,142	1,193,729
PRC [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	598,889	616,777	723,210
Hong Kong [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	478,696	494,033	459,029
Macau [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	10,243	39,225	8,348
Thailand [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	62,899	27,396	3,142
The United States [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	4,094	1,711	0

Subsequent_Events_Details_Text

Subsequent Events (Details Textual) (Subsequent Event [Member])	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014
In Millions, except Per Share data, unless otherwise specified	USD ($)	Heyuan Sun Line Industrial Limited [Member]	Heyuan Sun Line Industrial Limited [Member]
		CNY	HKD
Subsequent Event [Line Items]	'	'	'
Equity Method Investment, Realized Gain (Loss) on Disposal	'	35	43.75
Dividends Payable, Date Declared, Month and Year	'2014-05	'	'
Dividends Payable, Amount Per Share	$0.20	'	'

Change_in_Fiscal_Year_end_Deta

Change in Fiscal Year end (Details) (HKD)	8 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'
Revenues	933,888	911,294	1,167,115	1,313,818	1,291,223	1,323,533
Cost of revenues	-807,104	-801,413	-899,400	-1,144,971	-1,142,653	-1,074,880
Gross profit	126,784	109,881	267,715	168,847	148,570	248,653
Operating expenses, net	'	'	'	'	'	'
Selling, general and administrative expenses	-66,330	-56,498	-166,969	-94,743	-81,557	-83,584
Other income	6,266	1,600	2,508	7,098	2,431	4,711
Write-off of property, plant and equipment	-4,058	-690	-14,920	-4,058	-690	-1,791
Gain/(loss) on disposal of property, plant and equipment	1,898	829	-2,836	2,007	938	1,315
Total operating expenses, net	-62,224	-54,759	-182,217	-89,696	-78,878	-79,349
Income from operations	64,560	55,122	85,498	79,151	69,692	169,304
Interest income	166	172	276	212	218	124
Interest expense	-1,559	-1,880	-1,160	-2,374	-2,695	-3,008
Income before income tax expense	63,167	53,414	84,614	76,989	67,215	166,420
Income tax expense	-3,344	-13,379	-3,734	-6,777	-16,811	-33,106
Net income	59,823	40,035	80,880	70,212	50,404	133,314
Other comprehensive income	'	'	'	'	'	'
Foreign currency translation adjustment	-990	7,157	3,377	-911	7,408	218
Comprehensive income attributable to Plastec Technologies, Ltd.	58,833	47,192	84,257	69,301	57,812	133,532
Net income per share	'	'	'	'	'	'
Weighted average number of ordinary shares (in shares)	14,303,544	16,540,951	13,503,623	14,446,515	15,944,233	7,891,754
Weighted average number of diluted ordinary shares (in shares)	14,303,544	16,540,951	13,503,623	14,446,515	15,944,233	7,891,754
Basic income per share attributable to Plastec Technologies, Ltd. (in dollars per share)	4.2	2.4	6	4.9	3.2	16.9
Diluted income per share attributable to Plastec Technologies, Ltd. (in dollars per share)	4.2	2.4	6	4.9	3.2	16.9

Condensed_financial_informatio2

Condensed financial information of Plastec Technologies, Ltd. (Details) (HKD)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2010
In Thousands, unless otherwise specified
Assets	'	'	'	'	'
Cash and cash equivalents	348,901	309,862	199,818	219,757	151,304
Total current assets	753,517	700,099	631,588	'	'
Total assets	1,154,821	1,179,142	1,193,729	'	'
Liabilities and shareholders' equity	'	'	'	'	'
Tax payable	41,389	25,225	72,936	'	'
Total current liabilities	301,207	389,268	467,178	'	'
Shareholders' equity	'	'	'	'	'
Ordinary shares (U.S.$0.001 par value; 100,000,000 authorized, 14,352,903, 14,292,228 and 12,938,128 shares issued and outstanding as of April 30, 2012 and December 31, 2012 and 2013, respectively)	101	112	112	'	'
Additional paid-in capital	26,455	85,332	77,967	'	'
Retained earnings	759,157	678,277	618,454	'	'
Total shareholders' equity	803,614	778,245	712,047	746,260	'
Parent [Member]	'	'	'	'	'
Assets	'	'	'	'	'
Cash and cash equivalents	31,048	23,787	28,980	54,770	734
Amounts due from subsidiaries	100,056	0	0	'	'
Prepaid expenses	0	0	574	'	'
Total current assets	131,104	23,787	29,554	'	'
Investment in subsidiaries	1	1	1	'	'
Total assets	131,105	23,788	29,555	'	'
Liabilities and shareholders' equity	'	'	'	'	'
Account payable and accrued liabilities	609	369	369	'	'
Due to fellow subsidiaries	0	62,012	66,017	'	'
Tax payable	1,378	0	0	'	'
Total current liabilities	1,987	62,381	66,386	'	'
NET CURRENT ASSETS/(LIABILITIES)	129,118	-38,593	-36,831	'	'
TOTAL ASSETS AND LIABILITIES	129,118	-38,593	-36,831	'	'
Shareholders' equity	'	'	'	'	'
Ordinary shares (U.S.$0.001 par value; 100,000,000 authorized, 14,352,903, 14,292,228 and 12,938,128 shares issued and outstanding as of April 30, 2012 and December 31, 2012 and 2013, respectively)	101	112	112	'	'
Additional paid-in capital	-101,735	-38,341	-35,502	'	'
Retained earnings	230,752	-364	-1,441	'	'
Total shareholders' equity	129,118	-38,593	-36,831	'	'

Condensed_financial_informatio3

Condensed financial information of Plastec Technologies, Ltd. (Details 1) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Condensed Income Statements, Captions [Line Items]	'	'	'	'	'	'
Revenues	933,888	911,294	1,167,115	1,313,818	1,291,223	1,323,533
Other incomes	6,266	1,600	2,508	7,098	2,431	4,711
Finance costs	-1,559	-1,880	-1,160	-2,374	-2,695	-3,008
Income/(loss) before income tax expense	63,167	53,414	84,614	76,989	67,215	166,420
Income tax expense	3,344	13,379	3,734	6,777	16,811	33,106
Total comprehensive income /(loss)	59,823	40,035	80,880	70,212	50,404	133,314
Parent [Member]	'	'	'	'	'	'
Condensed Income Statements, Captions [Line Items]	'	'	'	'	'	'
Revenues	0	'	224,758	'	0	0
Other incomes	3,323	'	12,018	'	4,803	152
Administrative expenses	-2,243	'	-4,281	'	-4,163	-11,474
Finance costs	-3	'	0	'	0	0
Income/(loss) before income tax expense	1,077	'	232,495	'	640	-11,322
Income tax expense	0	'	-1,379	'	0	0
Total comprehensive income /(loss)	1,077	'	231,116	'	640	-11,322

Condensed_financial_informatio4

Condensed financial information of Plastec Technologies, Ltd. (Details 2) (HKD)	8 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2011
Cash flows from operating activities	'	'	'	'	'	'
Net income/(loss)	59,823	40,035	80,880	70,212	50,404	133,314
Change in operating assets and liabilities	'	'	'	'	'	'
Net cash (used in)/provided by operating activities	247,566	'	158,303	'	216,628	261,640
Cash flows from investing activities	'	'	'	'	'	'
Net cash used in investing activities	-73,414	'	-50,127	'	-133,728	-227,581
Change flows from financing activities	'	'	'	'	'	'
Net cash provided by/(used in)financing activities	-63,118	'	-72,514	'	-110,180	34,176
Net increase/(decrease) in cash and cash equivalents	111,034	'	35,662	'	-27,280	68,235
Cash and cash equivalents, beginning of year	199,818	219,757	309,862	'	219,757	151,304
Cash and cash equivalents, end of year	309,862	'	348,901	309,862	199,818	219,757
Parent [Member]	'	'	'	'	'	'
Cash flows from operating activities	'	'	'	'	'	'
Net income/(loss)	1,077	'	231,116	'	640	-11,322
Change in operating assets and liabilities	'	'	'	'	'	'
Prepaid expenses	574	'	0	'	-272	-47
Deferred offering costs	0	'	0	'	0	-230
Accounts payable and accrued liabilities	1	'	239	'	0	0
Income tax	0	'	1,378	'	0	0
Net cash (used in)/provided by operating activities	1,652	'	232,733	'	368	-11,599
Cash flows from investing activities	'	'	'	'	'	'
Investment to subsidiary	0	'	0	'	0	-1
Net cash used in investing activities	0	'	0	'	0	-1
Change flows from financing activities	'	'	'	'	'	'
Recapitalization on reverse acquisition	0	'	0	'	0	12,084
Proceeds from due to subsidiaries	0	'	0	'	65,868	148
Repayment of due to subsidiaries	-4,005	'	-162,068	'	0	0
Proceeds used in repurchase of shares and warrants	-2,840	'	-63,404	'	-92,026	0
Cash withdrawn from trust account	0	'	0	'	0	280,852
Proceeds used in share redemption	0	'	0	'	0	-227,448
Net cash provided by/(used in)financing activities	-6,845	'	-225,472	'	-26,158	65,636
Net increase/(decrease) in cash and cash equivalents	-5,193	'	7,261	'	-25,790	54,036
Cash and cash equivalents, beginning of year	28,980	54,770	23,787	'	54,770	734
Cash and cash equivalents, end of year	23,787	'	31,048	23,787	28,980	54,770

Condensed_financial_informatio5

Condensed financial information of Plastec Technologies, Ltd. (Details Textual) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2010	Nov. 25, 2009
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Common Stock, Par or Stated Value Per Share	$0.00	$0.00	$0.00	'	$0.00
Common Stock, Shares Authorized	100,000,000	100,000,000	100,000,000	100,000,000	'
Common Stock, Shares, Issued	12,938,128	14,292,228	14,352,903	'	'
Common Stock, Shares, Outstanding	12,938,128	14,292,228	14,352,903	'	'
Parent [Member]	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'
Common Stock, Par or Stated Value Per Share	$0.00	$0.00	$0.00	'	'
Common Stock, Shares Authorized	100,000,000	100,000,000	100,000,000	'	'
Common Stock, Shares, Issued	12,938,128	14,292,228	14,352,903	'	'
Common Stock, Shares, Outstanding	12,938,128	14,292,228	14,352,903	'	'